CVE-2026-27830

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-27830", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-02-24T02:32:39.800Z", "datePublished": "2026-02-26T00:45:18.222Z", "dateUpdated": "2026-09-15T12:04:22.713Z"}, "containers": {"cna": {"title": "c3p0 vulnerable to Remote Code Execution via unsafe deserialization of userOverridesAsString property", "problemTypes": [{"descriptions": [{"cweId": "CWE-502", "lang": "en", "description": "CWE-502: Deserialization of Untrusted Data", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-94", "lang": "en", "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "baseScore": 8.9, "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "version": "4.0"}}], "references": [{"name": "https://github.com/swaldman/c3p0/security/advisories/GHSA-5476-xc4j-rqcv", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/swaldman/c3p0/security/advisories/GHSA-5476-xc4j-rqcv"}, {"name": "https://github.com/swaldman/c3p0/commit/e14cbd8166e423e2e9a9d6f08b2add3433492d6e", "tags": ["x_refsource_MISC"], "url": "https://github.com/swaldman/c3p0/commit/e14cbd8166e423e2e9a9d6f08b2add3433492d6e"}, {"name": "https://mogwailabs.de/en/blog/2025/02/c3p0-you-little-rascal", "tags": ["x_refsource_MISC"], "url": "https://mogwailabs.de/en/blog/2025/02/c3p0-you-little-rascal"}, {"name": "https://www.mchange.com/projects/c3p0/#configuring_security", "tags": ["x_refsource_MISC"], "url": "https://www.mchange.com/projects/c3p0/#configuring_security"}, {"name": "https://www.mchange.com/projects/c3p0/#security-note", "tags": ["x_refsource_MISC"], "url": "https://www.mchange.com/projects/c3p0/#security-note"}], "affected": [{"vendor": "swaldman", "product": "c3p0", "versions": [{"version": "< 0.12.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-02-26T00:45:18.222Z"}, "descriptions": [{"lang": "en", "value": "c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and `javax.naming.Reference` instances. Several c3p0 `ConnectionPoolDataSource` implementations have a property called `userOverridesAsString` which conceptually represents a `Map<String,Map<String,String>>`. Prior to v0.12.0, that property was maintained as a hex-encoded serialized object. Any attacker able to reset this property, on an existing `ConnectionPoolDataSource` or via maliciously crafted serialized objects or `javax.naming.Reference` instances could be tailored execute unexpected code on the application's `CLASSPATH`. The danger of this vulnerability was strongly magnified by vulnerabilities in c3p0's main dependency, mchange-commons-java. This library includes code that mirrors early implementations of JNDI functionality, including ungated support for remote `factoryClassLocation` values. Attackers could set c3p0's `userOverridesAsString` hex-encoded serialized objects that include objects \"indirectly serialized\" via JNDI references. Deserialization of those objects and dereferencing of the embedded `javax.naming.Reference` objects could provoke download and execution of malicious code from a remote `factoryClassLocation`. Although hazard presented by c3p0's vulnerabilites are exarcerbated by vulnerabilities in mchange-commons-java, use of Java-serialized-object hex as the format for a writable Java-Bean property, of objects that may be exposed across JNDI interfaces, represents a serious independent fragility. The `userOverridesAsString` property of c3p0 `ConnectionPoolDataSource` classes has been reimplemented to use a safe CSV-based format, rather than rely upon potentially dangerous Java object deserialization. c3p0-0.12.0+ and above depend upon mchange-commons-java 0.4.0+, which gates support for remote `factoryClassLocation` values by configuration parameters that default to restrictive values. c3p0 additionally enforces the new mchange-commons-java `com.mchange.v2.naming.nameGuardClassName` to prevent injection of unexpected, potentially remote JNDI names. There is no supported workaround for versions of c3p0 prior to 0.12.0."}], "source": {"advisory": "GHSA-5476-xc4j-rqcv", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-05-02T03:55:34.556407Z", "id": "CVE-2026-27830", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-05-04T19:40:49.642Z"}}, {"affected": [{"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:apache_camel_spring_boot:4.14"], "defaultStatus": "unaffected", "packageName": "com.mchange/c3p0", "product": "Red Hat build of Apache Camel 4.14.4 for Spring Boot 3.5.11", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:debezium:3"], "defaultStatus": "unaffected", "packageName": "com.mchange/c3p0", "product": "Red Hat Build of Debezium 3.2", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"], "defaultStatus": "unaffected", "packageName": "c3p0/c3p0", "product": "Red Hat JBoss Enterprise Application Platform 8.1", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"], "defaultStatus": "unaffected", "packageName": "org.hibernate.orm/hibernate-c3p0", "product": "Red Hat JBoss Enterprise Application Platform 8.1", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el8"], "defaultStatus": "affected", "packageName": "eap8-hibernate", "product": "Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:6.6.48-1.Final_redhat_00001.1.el8eap", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"], "defaultStatus": "affected", "packageName": "eap8-hibernate", "product": "Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:6.6.48-1.Final_redhat_00001.1.el9eap", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:satellite:6.18::el9"], "defaultStatus": "affected", "packageName": "candlepin", "product": "Red Hat Satellite 6.18 for RHEL 9", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:4.6.6-1.el9sat", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:apache_camel_hawtio:4"], "defaultStatus": "unaffected", "packageName": "com.mchange/c3p0", "product": "Red Hat build of Apache Camel - HawtIO 4", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:debezium:2"], "defaultStatus": "affected", "packageName": "com.mchange/c3p0", "product": "Red Hat build of Debezium 2", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:debezium:2"], "defaultStatus": "affected", "packageName": "org.hibernate.orm/hibernate-c3p0", "product": "Red Hat build of Debezium 2", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:debezium:3"], "defaultStatus": "affected", "packageName": "org.hibernate.orm/hibernate-c3p0", "product": "Red Hat build of Debezium 3", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_fuse:7"], "defaultStatus": "affected", "packageName": "c3p0/c3p0", "product": "Red Hat Fuse 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:7"], "defaultStatus": "affected", "packageName": "com.mchange/c3p0", "product": "Red Hat JBoss Enterprise Application Platform 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:7"], "defaultStatus": "affected", "packageName": "org.hibernate/hibernate-c3p0", "product": "Red Hat JBoss Enterprise Application Platform 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "defaultStatus": "unaffected", "packageName": "c3p0", "product": "Red Hat JBoss Enterprise Application Platform 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "defaultStatus": "unaffected", "packageName": "hibernate-c3p0", "product": "Red Hat JBoss Enterprise Application Platform 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "defaultStatus": "unaffected", "packageName": "io.opentelemetry.instrumentation/opentelemetry-c3p0-0.9", "product": "Red Hat JBoss Enterprise Application Platform 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "defaultStatus": "unaffected", "packageName": "io.opentelemetry.javaagent.instrumentation/opentelemetry-javaagent-c3p0-0.9", "product": "Red Hat JBoss Enterprise Application Platform 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "c3p0", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "c3p0/c3p0", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "hibernate-c3p0", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "io.opentelemetry.instrumentation/opentelemetry-c3p0-0.9", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "io.opentelemetry.javaagent.instrumentation/opentelemetry-javaagent-c3p0-0.9", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "org.hibernate/hibernate-c3p0", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "org.hibernate.orm/hibernate-c3p0", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_bpms_platform:7"], "defaultStatus": "unaffected", "packageName": "com.mchange/c3p0", "product": "Red Hat Process Automation 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:satellite:6"], "defaultStatus": "affected", "packageName": "c3p0", "product": "Red Hat Satellite 6", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:satellite:6"], "defaultStatus": "affected", "packageName": "com.mchange.v2.c3p0/c3p0", "product": "Red Hat Satellite 6", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:satellite:6"], "defaultStatus": "unaffected", "packageName": "org.hibernate.orm.c3p0/hibernate-c3p0", "product": "Red Hat Satellite 6", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:amq_streams:2"], "defaultStatus": "affected", "packageName": "com.mchange/c3p0", "product": "streams for Apache Kafka 2", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:amq_streams:3"], "defaultStatus": "unaffected", "packageName": "com.mchange/c3p0", "product": "streams for Apache Kafka 3", "vendor": "Red Hat"}], "datePublic": "2026-02-26T00:45:18.222Z", "descriptions": [{"lang": "en", "value": "A flaw was found in c3p0, a Java Database Connectivity (JDBC) Connection pooling library. This vulnerability allows an attacker to achieve arbitrary code execution by providing maliciously crafted Java-serialized objects or `javax.naming.Reference` instances. By manipulating the `userOverridesAsString` property, an attacker can cause the application to download and execute malicious code from a remote location on its CLASSPATH."}], "metrics": [{"other": {"content": {"namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important"}, "type": "Red Hat severity rating"}}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "format": "CVSS"}], "problemTypes": [{"descriptions": [{"cweId": "CWE-502", "description": "Deserialization of Untrusted Data", "lang": "en", "type": "CWE"}]}], "references": [{"tags": ["vdb-entry", "x_refsource_REDHAT"], "url": "https://access.redhat.com/security/cve/CVE-2026-27830"}, {"name": "RHBZ#2442908", "tags": ["issue-tracking", "x_refsource_REDHAT"], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2442908"}, {"tags": ["x_sadp-csaf-vex"], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27830.json"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:18054"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:18055"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:28385"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:4285"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:18059"}, {"tags": ["vendor-advisory", "x_refsource_REDHAT"], "url": "https://access.redhat.com/errata/RHSA-2026:3890"}], "solutions": [{"lang": "en", "value": "RHSA-2026:18054: Red Hat JBoss EAP 8.1 for RHEL 8"}, {"lang": "en", "value": "RHSA-2026:18055: Red Hat JBoss EAP 8.1 for RHEL 9"}, {"lang": "en", "value": "RHSA-2026:28385: Red Hat Satellite 6.18 for RHEL 9"}, {"lang": "en", "value": "RHSA-2026:4285: Red Hat Build of Debezium 3.2"}, {"lang": "en", "value": "RHSA-2026:18059: Red Hat JBoss Enterprise Application Platform 8.1.7.GA"}, {"lang": "en", "value": "RHSA-2026:3890: Red Hat build of Apache Camel 4.14.4 for Spring Boot 3.5.11"}], "timeline": [{"lang": "en", "time": "2026-02-26T01:01:56.834Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-02-26T00:45:18.222Z", "value": "Made public."}], "title": "c3p0: c3p0: Arbitrary Code Execution via deserialization of crafted objects", "x_adpType": "supplier", "x_generator": {"engine": "sadp-cli 1.0.0"}, "providerMetadata": {"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-09-15T12:04:22.713Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "c3p0: c3p0: Arbitrary Code Execution via deserialization of crafted objects", "metrics": [{"other": {"type": "Red Hat severity rating", "content": {"value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/"}}}, {"format": "CVSS", "cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}], "affected": [{"cpes": ["cpe:/a:redhat:apache_camel_spring_boot:4.14"], "vendor": "Red Hat", "product": "Red Hat build of Apache Camel 4.14.4 for Spring Boot 3.5.11", "packageName": "com.mchange/c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:debezium:3"], "vendor": "Red Hat", "product": "Red Hat Build of Debezium 3.2", "packageName": "com.mchange/c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8.1", "packageName": "c3p0/c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8.1", "packageName": "org.hibernate.orm/hibernate-c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el8"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8", "versions": [{"status": "unaffected", "version": "0:6.6.48-1.Final_redhat_00001.1.el8eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap8-hibernate", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9", "versions": [{"status": "unaffected", "version": "0:6.6.48-1.Final_redhat_00001.1.el9eap", "lessThan": "*", "versionType": "rpm"}], "packageName": "eap8-hibernate", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:satellite:6.18::el9"], "vendor": "Red Hat", "product": "Red Hat Satellite 6.18 for RHEL 9", "versions": [{"status": "unaffected", "version": "0:4.6.6-1.el9sat", "lessThan": "*", "versionType": "rpm"}], "packageName": "candlepin", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:apache_camel_hawtio:4"], "vendor": "Red Hat", "product": "Red Hat build of Apache Camel - HawtIO 4", "packageName": "com.mchange/c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:debezium:2"], "vendor": "Red Hat", "product": "Red Hat build of Debezium 2", "packageName": "com.mchange/c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:debezium:2"], "vendor": "Red Hat", "product": "Red Hat build of Debezium 2", "packageName": "org.hibernate.orm/hibernate-c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:debezium:3"], "vendor": "Red Hat", "product": "Red Hat build of Debezium 3", "packageName": "org.hibernate.orm/hibernate-c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_fuse:7"], "vendor": "Red Hat", "product": "Red Hat Fuse 7", "packageName": "c3p0/c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7", "packageName": "com.mchange/c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:7"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7", "packageName": "org.hibernate/hibernate-c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8", "packageName": "c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8", "packageName": "hibernate-c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8", "packageName": "io.opentelemetry.instrumentation/opentelemetry-c3p0-0.9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 8", "packageName": "io.opentelemetry.javaagent.instrumentation/opentelemetry-javaagent-c3p0-0.9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jbosseapxp"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "packageName": "c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jbosseapxp"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "packageName": "c3p0/c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jbosseapxp"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "packageName": "hibernate-c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jbosseapxp"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "packageName": "io.opentelemetry.instrumentation/opentelemetry-c3p0-0.9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jbosseapxp"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "packageName": "io.opentelemetry.javaagent.instrumentation/opentelemetry-javaagent-c3p0-0.9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jbosseapxp"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "packageName": "org.hibernate/hibernate-c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jbosseapxp"], "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "packageName": "org.hibernate.orm/hibernate-c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:jboss_enterprise_bpms_platform:7"], "vendor": "Red Hat", "product": "Red Hat Process Automation 7", "packageName": "com.mchange/c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:satellite:6"], "vendor": "Red Hat", "product": "Red Hat Satellite 6", "packageName": "c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:satellite:6"], "vendor": "Red Hat", "product": "Red Hat Satellite 6", "packageName": "com.mchange.v2.c3p0/c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:satellite:6"], "vendor": "Red Hat", "product": "Red Hat Satellite 6", "packageName": "org.hibernate.orm.c3p0/hibernate-c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}, {"cpes": ["cpe:/a:redhat:amq_streams:2"], "vendor": "Red Hat", "product": "streams for Apache Kafka 2", "packageName": "com.mchange/c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:amq_streams:3"], "vendor": "Red Hat", "product": "streams for Apache Kafka 3", "packageName": "com.mchange/c3p0", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "unaffected"}], "timeline": [{"lang": "en", "time": "2026-02-26T01:01:56.834Z", "value": "Reported to Red Hat."}, {"lang": "en", "time": "2026-02-26T00:45:18.222Z", "value": "Made public."}], "solutions": [{"lang": "en", "value": "RHSA-2026:18054: Red Hat JBoss EAP 8.1 for RHEL 8"}, {"lang": "en", "value": "RHSA-2026:18055: Red Hat JBoss EAP 8.1 for RHEL 9"}, {"lang": "en", "value": "RHSA-2026:28385: Red Hat Satellite 6.18 for RHEL 9"}, {"lang": "en", "value": "RHSA-2026:4285: Red Hat Build of Debezium 3.2"}, {"lang": "en", "value": "RHSA-2026:18059: Red Hat JBoss Enterprise Application Platform 8.1.7.GA"}, {"lang": "en", "value": "RHSA-2026:3890: Red Hat build of Apache Camel 4.14.4 for Spring Boot 3.5.11"}], "x_adpType": "supplier", "datePublic": "2026-02-26T00:45:18.222Z", "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-27830", "tags": ["vdb-entry", "x_refsource_REDHAT"]}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2442908", "name": "RHBZ#2442908", "tags": ["issue-tracking", "x_refsource_REDHAT"]}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27830.json", "tags": ["x_sadp-csaf-vex"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:18054", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:18055", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:28385", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:4285", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:18059", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}, {"url": "https://access.redhat.com/errata/RHSA-2026:3890", "tags": ["vendor-advisory", "x_refsource_REDHAT"]}], "x_generator": {"engine": "sadp-cli 1.0.0"}, "descriptions": [{"lang": "en", "value": "A flaw was found in c3p0, a Java Database Connectivity (JDBC) Connection pooling library. This vulnerability allows an attacker to achieve arbitrary code execution by providing maliciously crafted Java-serialized objects or `javax.naming.Reference` instances. By manipulating the `userOverridesAsString` property, an attacker can cause the application to download and execute malicious code from a remote location on its CLASSPATH."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-502", "description": "Deserialization of Untrusted Data"}]}], "providerMetadata": {"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-09-15T12:04:22.713Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-27830", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-05-02T03:55:34.556407Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-02-27T16:25:47.891Z"}}], "cna": {"title": "c3p0 vulnerable to Remote Code Execution via unsafe deserialization of userOverridesAsString property", "source": {"advisory": "GHSA-5476-xc4j-rqcv", "discovery": "UNKNOWN"}, "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 8.9, "attackVector": "ADJACENT", "baseSeverity": "HIGH", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH"}}], "affected": [{"vendor": "swaldman", "product": "c3p0", "versions": [{"status": "affected", "version": "< 0.12.0"}]}], "references": [{"url": "https://github.com/swaldman/c3p0/security/advisories/GHSA-5476-xc4j-rqcv", "name": "https://github.com/swaldman/c3p0/security/advisories/GHSA-5476-xc4j-rqcv", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/swaldman/c3p0/commit/e14cbd8166e423e2e9a9d6f08b2add3433492d6e", "name": "https://github.com/swaldman/c3p0/commit/e14cbd8166e423e2e9a9d6f08b2add3433492d6e", "tags": ["x_refsource_MISC"]}, {"url": "https://mogwailabs.de/en/blog/2025/02/c3p0-you-little-rascal", "name": "https://mogwailabs.de/en/blog/2025/02/c3p0-you-little-rascal", "tags": ["x_refsource_MISC"]}, {"url": "https://www.mchange.com/projects/c3p0/#configuring_security", "name": "https://www.mchange.com/projects/c3p0/#configuring_security", "tags": ["x_refsource_MISC"]}, {"url": "https://www.mchange.com/projects/c3p0/#security-note", "name": "https://www.mchange.com/projects/c3p0/#security-note", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and `javax.naming.Reference` instances. Several c3p0 `ConnectionPoolDataSource` implementations have a property called `userOverridesAsString` which conceptually represents a `Map<String,Map<String,String>>`. Prior to v0.12.0, that property was maintained as a hex-encoded serialized object. Any attacker able to reset this property, on an existing `ConnectionPoolDataSource` or via maliciously crafted serialized objects or `javax.naming.Reference` instances could be tailored execute unexpected code on the application's `CLASSPATH`. The danger of this vulnerability was strongly magnified by vulnerabilities in c3p0's main dependency, mchange-commons-java. This library includes code that mirrors early implementations of JNDI functionality, including ungated support for remote `factoryClassLocation` values. Attackers could set c3p0's `userOverridesAsString` hex-encoded serialized objects that include objects \"indirectly serialized\" via JNDI references. Deserialization of those objects and dereferencing of the embedded `javax.naming.Reference` objects could provoke download and execution of malicious code from a remote `factoryClassLocation`. Although hazard presented by c3p0's vulnerabilites are exarcerbated by vulnerabilities in mchange-commons-java, use of Java-serialized-object hex as the format for a writable Java-Bean property, of objects that may be exposed across JNDI interfaces, represents a serious independent fragility. The `userOverridesAsString` property of c3p0 `ConnectionPoolDataSource` classes has been reimplemented to use a safe CSV-based format, rather than rely upon potentially dangerous Java object deserialization. c3p0-0.12.0+ and above depend upon mchange-commons-java 0.4.0+, which gates support for remote `factoryClassLocation` values by configuration parameters that default to restrictive values. c3p0 additionally enforces the new mchange-commons-java `com.mchange.v2.naming.nameGuardClassName` to prevent injection of unexpected, potentially remote JNDI names. There is no supported workaround for versions of c3p0 prior to 0.12.0."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-502", "description": "CWE-502: Deserialization of Untrusted Data"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-94", "description": "CWE-94: Improper Control of Generation of Code ('Code Injection')"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-02-26T00:45:18.222Z"}}}, "cveMetadata": {"cveId": "CVE-2026-27830", "state": "PUBLISHED", "dateUpdated": "2026-09-15T12:04:22.713Z", "dateReserved": "2026-02-24T02:32:39.800Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-02-26T00:45:18.222Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "c3p0", "vendor": "swaldman", "versions": [{"status": "affected", "version": "< 0.12.0"}]}], "source": "security-advisories@github.com"}, {"affectedData": [{"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:apache_camel_spring_boot:4.14"], "defaultStatus": "unaffected", "packageName": "com.mchange/c3p0", "product": "Red Hat build of Apache Camel 4.14.4 for Spring Boot 3.5.11", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:debezium:3"], "defaultStatus": "unaffected", "packageName": "com.mchange/c3p0", "product": "Red Hat Build of Debezium 3.2", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"], "defaultStatus": "unaffected", "packageName": "c3p0/c3p0", "product": "Red Hat JBoss Enterprise Application Platform 8.1", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"], "defaultStatus": "unaffected", "packageName": "org.hibernate.orm/hibernate-c3p0", "product": "Red Hat JBoss Enterprise Application Platform 8.1", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el8"], "defaultStatus": "affected", "packageName": "eap8-hibernate", "product": "Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:6.6.48-1.Final_redhat_00001.1.el8eap", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"], "defaultStatus": "affected", "packageName": "eap8-hibernate", "product": "Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:6.6.48-1.Final_redhat_00001.1.el9eap", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:satellite:6.18::el9"], "defaultStatus": "affected", "packageName": "candlepin", "product": "Red Hat Satellite 6.18 for RHEL 9", "vendor": "Red Hat", "versions": [{"lessThan": "*", "status": "unaffected", "version": "0:4.6.6-1.el9sat", "versionType": "rpm"}]}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:apache_camel_hawtio:4"], "defaultStatus": "unaffected", "packageName": "com.mchange/c3p0", "product": "Red Hat build of Apache Camel - HawtIO 4", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:debezium:2"], "defaultStatus": "affected", "packageName": "com.mchange/c3p0", "product": "Red Hat build of Debezium 2", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:debezium:2"], "defaultStatus": "affected", "packageName": "org.hibernate.orm/hibernate-c3p0", "product": "Red Hat build of Debezium 2", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:debezium:3"], "defaultStatus": "affected", "packageName": "org.hibernate.orm/hibernate-c3p0", "product": "Red Hat build of Debezium 3", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_fuse:7"], "defaultStatus": "affected", "packageName": "c3p0/c3p0", "product": "Red Hat Fuse 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:7"], "defaultStatus": "affected", "packageName": "com.mchange/c3p0", "product": "Red Hat JBoss Enterprise Application Platform 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:7"], "defaultStatus": "affected", "packageName": "org.hibernate/hibernate-c3p0", "product": "Red Hat JBoss Enterprise Application Platform 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "defaultStatus": "unaffected", "packageName": "c3p0", "product": "Red Hat JBoss Enterprise Application Platform 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "defaultStatus": "unaffected", "packageName": "hibernate-c3p0", "product": "Red Hat JBoss Enterprise Application Platform 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "defaultStatus": "unaffected", "packageName": "io.opentelemetry.instrumentation/opentelemetry-c3p0-0.9", "product": "Red Hat JBoss Enterprise Application Platform 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_application_platform:8"], "defaultStatus": "unaffected", "packageName": "io.opentelemetry.javaagent.instrumentation/opentelemetry-javaagent-c3p0-0.9", "product": "Red Hat JBoss Enterprise Application Platform 8", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "c3p0", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "c3p0/c3p0", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "hibernate-c3p0", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "io.opentelemetry.instrumentation/opentelemetry-c3p0-0.9", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "io.opentelemetry.javaagent.instrumentation/opentelemetry-javaagent-c3p0-0.9", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "org.hibernate/hibernate-c3p0", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jbosseapxp"], "defaultStatus": "unaffected", "packageName": "org.hibernate.orm/hibernate-c3p0", "product": "Red Hat JBoss Enterprise Application Platform Expansion Pack", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_bpms_platform:7"], "defaultStatus": "unaffected", "packageName": "com.mchange/c3p0", "product": "Red Hat Process Automation 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:satellite:6"], "defaultStatus": "affected", "packageName": "c3p0", "product": "Red Hat Satellite 6", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:satellite:6"], "defaultStatus": "affected", "packageName": "com.mchange.v2.c3p0/c3p0", "product": "Red Hat Satellite 6", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:satellite:6"], "defaultStatus": "unaffected", "packageName": "org.hibernate.orm.c3p0/hibernate-c3p0", "product": "Red Hat Satellite 6", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:amq_streams:2"], "defaultStatus": "affected", "packageName": "com.mchange/c3p0", "product": "streams for Apache Kafka 2", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:amq_streams:3"], "defaultStatus": "unaffected", "packageName": "com.mchange/c3p0", "product": "streams for Apache Kafka 3", "vendor": "Red Hat"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and `javax.naming.Reference` instances. Several c3p0 `ConnectionPoolDataSource` implementations have a property called `userOverridesAsString` which conceptually represents a `Map<String,Map<String,String>>`. Prior to v0.12.0, that property was maintained as a hex-encoded serialized object. Any attacker able to reset this property, on an existing `ConnectionPoolDataSource` or via maliciously crafted serialized objects or `javax.naming.Reference` instances could be tailored execute unexpected code on the application's `CLASSPATH`. The danger of this vulnerability was strongly magnified by vulnerabilities in c3p0's main dependency, mchange-commons-java. This library includes code that mirrors early implementations of JNDI functionality, including ungated support for remote `factoryClassLocation` values. Attackers could set c3p0's `userOverridesAsString` hex-encoded serialized objects that include objects \"indirectly serialized\" via JNDI references. Deserialization of those objects and dereferencing of the embedded `javax.naming.Reference` objects could provoke download and execution of malicious code from a remote `factoryClassLocation`. Although hazard presented by c3p0's vulnerabilites are exarcerbated by vulnerabilities in mchange-commons-java, use of Java-serialized-object hex as the format for a writable Java-Bean property, of objects that may be exposed across JNDI interfaces, represents a serious independent fragility. The `userOverridesAsString` property of c3p0 `ConnectionPoolDataSource` classes has been reimplemented to use a safe CSV-based format, rather than rely upon potentially dangerous Java object deserialization. c3p0-0.12.0+ and above depend upon mchange-commons-java 0.4.0+, which gates support for remote `factoryClassLocation` values by configuration parameters that default to restrictive values. c3p0 additionally enforces the new mchange-commons-java `com.mchange.v2.naming.nameGuardClassName` to prevent injection of unexpected, potentially remote JNDI names. There is no supported workaround for versions of c3p0 prior to 0.12.0."}, {"lang": "es", "value": "c3p0, una biblioteca de pooling de conexiones JDBC, es vulnerable al ataque a trav\u00e9s de objetos serializados en Java creados maliciosamente e instancias de `javax.naming.Reference`. Varias implementaciones de `ConnectionPoolDataSource` de c3p0 tienen una propiedad llamada `userOverridesAsString` que representa conceptualmente un `Map&gt;`. Antes de la v0.12.0, esa propiedad se manten\u00eda como un objeto serializado codificado en hexadecimal. Cualquier atacante capaz de restablecer esta propiedad, en un `ConnectionPoolDataSource` existente o a trav\u00e9s de objetos serializados creados maliciosamente o instancias de `javax.naming.Reference`, podr\u00eda ser manipulado para ejecutar c\u00f3digo inesperado en el `CLASSPATH` de la aplicaci\u00f3n. El peligro de esta vulnerabilidad fue fuertemente magnificado por vulnerabilidades en la dependencia principal de c3p0, mchange-commons-java. Esta biblioteca incluye c\u00f3digo que refleja implementaciones tempranas de la funcionalidad JNDI, incluyendo soporte sin restricciones para valores remotos de `factoryClassLocation`. Los atacantes podr\u00edan establecer objetos serializados codificados en hexadecimal de `userOverridesAsString` de c3p0 que incluyen objetos 'serializados indirectamente' a trav\u00e9s de referencias JNDI. La deserializaci\u00f3n de esos objetos y la desreferenciaci\u00f3n de los objetos `javax.naming.Reference` incrustados podr\u00edan provocar la descarga y ejecuci\u00f3n de c\u00f3digo malicioso desde un `factoryClassLocation` remoto. Aunque el peligro presentado por las vulnerabilidades de c3p0 se ve exacerbado por las vulnerabilidades en mchange-commons-java, el uso de hexadecimal de objetos serializados en Java como formato para una propiedad Java-Bean escribible, de objetos que pueden ser expuestos a trav\u00e9s de interfaces JNDI, representa una grave fragilidad independiente. La propiedad `userOverridesAsString` de las clases `ConnectionPoolDataSource` de c3p0 ha sido reimplementada para usar un formato seguro basado en CSV, en lugar de depender de la deserializaci\u00f3n de objetos Java potencialmente peligrosa. c3p0-0.12.0+ y versiones superiores dependen de mchange-commons-java 0.4.0+, que restringe el soporte para valores remotos de `factoryClassLocation` mediante par\u00e1metros de configuraci\u00f3n que por defecto son valores restrictivos. c3p0 adicionalmente impone el nuevo `com.mchange.v2.naming.nameGuardClassName` de mchange-commons-java para prevenir la inyecci\u00f3n de nombres JNDI inesperados, potencialmente remotos. No hay soluci\u00f3n alternativa soportada para versiones de c3p0 anteriores a la 0.12.0."}], "id": "CVE-2026-27830", "lastModified": "2026-09-14T13:17:54.607", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.0, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 5.9, "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 8.9, "baseSeverity": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-27830", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-05-02T03:55:34.556407Z", "version": "2.0.3"}}]}, "published": "2026-02-26T01:16:24.583", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/swaldman/c3p0/commit/e14cbd8166e423e2e9a9d6f08b2add3433492d6e"}, {"source": "security-advisories@github.com", "url": "https://github.com/swaldman/c3p0/security/advisories/GHSA-5476-xc4j-rqcv"}, {"source": "security-advisories@github.com", "url": "https://mogwailabs.de/en/blog/2025/02/c3p0-you-little-rascal"}, {"source": "security-advisories@github.com", "url": "https://www.mchange.com/projects/c3p0/#configuring_security"}, {"source": "security-advisories@github.com", "url": "https://www.mchange.com/projects/c3p0/#security-note"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:18054"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:18055"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:18059"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:28385"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:3890"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/errata/RHSA-2026:4285"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/security/cve/CVE-2026-27830"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2442908"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27830.json"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}, {"lang": "en", "value": "CWE-502"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-502"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}]}

{"bugzilla": {"description": "c3p0: c3p0: Arbitrary Code Execution via deserialization of crafted objects", "id": "2442908", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2442908"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.0", "cvss3_scoring_vector": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-502", "details": ["c3p0, a JDBC Connection pooling library, is vulnerable to attack via maliciously crafted Java-serialized objects and `javax.naming.Reference` instances. Several c3p0 `ConnectionPoolDataSource` implementations have a property called `userOverridesAsString` which conceptually represents a `Map<String,Map<String,String>>`. Prior to v0.12.0, that property was maintained as a hex-encoded serialized object. Any attacker able to reset this property, on an existing `ConnectionPoolDataSource` or via maliciously crafted serialized objects or `javax.naming.Reference` instances could be tailored execute unexpected code on the application's `CLASSPATH`. The danger of this vulnerability was strongly magnified by vulnerabilities in c3p0's main dependency, mchange-commons-java. This library includes code that mirrors early implementations of JNDI functionality, including ungated support for remote `factoryClassLocation` values. Attackers could set c3p0's `userOverridesAsString` hex-encoded serialized objects that include objects \"indirectly serialized\" via JNDI references. Deserialization of those objects and dereferencing of the embedded `javax.naming.Reference` objects could provoke download and execution of malicious code from a remote `factoryClassLocation`. Although hazard presented by c3p0's vulnerabilites are exarcerbated by vulnerabilities in mchange-commons-java, use of Java-serialized-object hex as the format for a writable Java-Bean property, of objects that may be exposed across JNDI interfaces, represents a serious independent fragility. The `userOverridesAsString` property of c3p0 `ConnectionPoolDataSource` classes has been reimplemented to use a safe CSV-based format, rather than rely upon potentially dangerous Java object deserialization. c3p0-0.12.0+ and above depend upon mchange-commons-java 0.4.0+, which gates support for remote `factoryClassLocation` values by configuration parameters that default to restrictive values. c3p0 additionally enforces the new mchange-commons-java `com.mchange.v2.naming.nameGuardClassName` to prevent injection of unexpected, potentially remote JNDI names. There is no supported workaround for versions of c3p0 prior to 0.12.0.", "A flaw was found in c3p0, a Java Database Connectivity (JDBC) Connection pooling library. This vulnerability allows an attacker to achieve arbitrary code execution by providing maliciously crafted Java-serialized objects or `javax.naming.Reference` instances. By manipulating the `userOverridesAsString` property, an attacker can cause the application to download and execute malicious code from a remote location on its CLASSPATH."], "name": "CVE-2026-27830", "package_state": [{"cpe": "cpe:/a:redhat:camel_spring_boot:4", "fix_state": "Affected", "package_name": "com.mchange/c3p0", "product_name": "Red Hat build of Apache Camel for Spring Boot 4"}, {"cpe": "cpe:/a:redhat:apache_camel_hawtio:4", "fix_state": "Affected", "package_name": "com.mchange/c3p0", "product_name": "Red Hat build of Apache Camel - HawtIO 4"}, {"cpe": "cpe:/a:redhat:debezium:2", "fix_state": "Affected", "package_name": "com.mchange/c3p0", "product_name": "Red Hat build of Debezium 2"}, {"cpe": "cpe:/a:redhat:debezium:2", "fix_state": "Affected", "package_name": "org.hibernate.orm/hibernate-c3p0", "product_name": "Red Hat build of Debezium 2"}, {"cpe": "cpe:/a:redhat:debezium:3", "fix_state": "Affected", "package_name": "com.mchange/c3p0", "product_name": "Red Hat build of Debezium 3"}, {"cpe": "cpe:/a:redhat:debezium:3", "fix_state": "Affected", "package_name": "org.hibernate.orm/hibernate-c3p0", "product_name": "Red Hat build of Debezium 3"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Will not fix", "package_name": "c3p0/c3p0", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Will not fix", "package_name": "com.mchange/c3p0", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Affected", "package_name": "com.mchange/c3p0", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Affected", "package_name": "org.hibernate/hibernate-c3p0", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "c3p0/c3p0", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "com.mchange/c3p0", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "io.opentelemetry.instrumentation/opentelemetry-c3p0-0.9", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "io.opentelemetry.javaagent.instrumentation/opentelemetry-javaagent-c3p0-0.9", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "org.hibernate/hibernate-c3p0", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Affected", "package_name": "org.hibernate.orm/hibernate-c3p0", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "c3p0/c3p0", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "com.mchange/c3p0", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "io.opentelemetry.instrumentation/opentelemetry-c3p0-0.9", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "io.opentelemetry.javaagent.instrumentation/opentelemetry-javaagent-c3p0-0.9", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "org.hibernate/hibernate-c3p0", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Affected", "package_name": "org.hibernate.orm/hibernate-c3p0", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_bpms_platform:7", "fix_state": "Not affected", "package_name": "com.mchange/c3p0", "product_name": "Red Hat Process Automation 7"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Affected", "package_name": "com.mchange/c3p0", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Affected", "package_name": "com.mchange.v2.c3p0/c3p0", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Affected", "package_name": "org.hibernate/hibernate-c3p0", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:satellite:6", "fix_state": "Affected", "package_name": "org.hibernate.orm.c3p0/hibernate-c3p0", "product_name": "Red Hat Satellite 6"}, {"cpe": "cpe:/a:redhat:amq_streams:2", "fix_state": "Affected", "package_name": "com.mchange/c3p0", "product_name": "streams for Apache Kafka 2"}, {"cpe": "cpe:/a:redhat:amq_streams:3", "fix_state": "Affected", "package_name": "com.mchange/c3p0", "product_name": "streams for Apache Kafka 3"}], "public_date": "2026-02-26T00:45:18Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-27830\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-27830\nhttps://github.com/swaldman/c3p0/commit/e14cbd8166e423e2e9a9d6f08b2add3433492d6e\nhttps://github.com/swaldman/c3p0/security/advisories/GHSA-5476-xc4j-rqcv\nhttps://mogwailabs.de/en/blog/2025/02/c3p0-you-little-rascal\nhttps://www.mchange.com/projects/c3p0/#configuring_security\nhttps://www.mchange.com/projects/c3p0/#security-note"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.12.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "c3p0", "source": "cna", "vendor": "swaldman"}, "product": "c3p0", "vendor": "swaldman"}], "created": "2026-02-26T13:10:16.975556+00:00", "updated": "2026-10-25T22:00:15.280980+00:00", "vendors": ["swaldman", "swaldman$PRODUCT$c3p0"]}