CVE-2026-46495

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46495", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-14T18:06:06.811Z", "datePublished": "2026-09-15T14:09:30.669Z", "dateUpdated": "2026-09-15T14:48:13.800Z"}, "containers": {"cna": {"title": "OpenDJ Pre-Auth RCE via Java Deserialization in JMX RMI", "problemTypes": [{"descriptions": [{"cweId": "CWE-502", "lang": "en", "description": "CWE-502: Deserialization of Untrusted Data", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 9.2, "baseSeverity": "CRITICAL", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/OpenIdentityPlatform/OpenDJ/security/advisories/GHSA-43x2-g84q-fmqx", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/OpenIdentityPlatform/OpenDJ/security/advisories/GHSA-43x2-g84q-fmqx"}, {"name": "https://github.com/OpenIdentityPlatform/OpenDJ/pull/651", "tags": ["x_refsource_MISC"], "url": "https://github.com/OpenIdentityPlatform/OpenDJ/pull/651"}, {"name": "https://github.com/OpenIdentityPlatform/OpenDJ/commit/7e3a75903159153c877daeb2952a552701e38044", "tags": ["x_refsource_MISC"], "url": "https://github.com/OpenIdentityPlatform/OpenDJ/commit/7e3a75903159153c877daeb2952a552701e38044"}, {"name": "https://github.com/OpenIdentityPlatform/OpenDJ/commit/d4a95c2e37c375756f9829c7ec43a4785b99e2e2", "tags": ["x_refsource_MISC"], "url": "https://github.com/OpenIdentityPlatform/OpenDJ/commit/d4a95c2e37c375756f9829c7ec43a4785b99e2e2"}, {"name": "https://github.com/OpenIdentityPlatform/OpenDJ/releases/tag/5.1.1", "tags": ["x_refsource_MISC"], "url": "https://github.com/OpenIdentityPlatform/OpenDJ/releases/tag/5.1.1"}], "affected": [{"vendor": "OpenIdentityPlatform", "product": "OpenDJ", "versions": [{"version": "< 5.1.1", "status": "affected"}]}, {"vendor": "org.openidentityplatform.opendj", "product": "opendj-server-legacy", "versions": [{"version": "< 5.1.1", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-15T14:09:30.669Z"}, "descriptions": [{"lang": "en", "value": "OpenDJ is an LDAPv3 compliant directory service. Prior to 5.1.1, the JMX RMI connector in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiConnector.java processes attacker-controlled credential objects before authentication without a restrictive jmx.remote.rmi.server.credentials.filter.pattern, and RmiAuthenticator.authenticate in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiAuthenticator.java accepts an unconstrained Object array rather than a two-element String[]. When the JMX Connection Handler is enabled and its TCP listener is reachable, an unauthenticated remote attacker can submit a crafted serialized Java object and achieve code execution in the OpenDJ server process. The handler is disabled by default, and successful exploitation depends on the runtime classpath and Java version; remote code execution was demonstrated against OpenDJ 4.4.15 on JDK 11 with Jackson 2.12.6.1. This issue is fixed in 5.1.1."}], "source": {"advisory": "GHSA-43x2-g84q-fmqx", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-15T14:48:04.687911Z", "id": "CVE-2026-46495", "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": "2026-09-15T14:48:13.800Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-46495", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-15T14:48:04.687911Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-15T14:48:08.596Z"}}], "cna": {"title": "OpenDJ Pre-Auth RCE via Java Deserialization in JMX RMI", "source": {"advisory": "GHSA-43x2-g84q-fmqx", "discovery": "UNKNOWN"}, "metrics": [{"cvssV4_0": {"version": "4.0", "baseScore": 9.2, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH"}}], "affected": [{"vendor": "OpenIdentityPlatform", "product": "OpenDJ", "versions": [{"status": "affected", "version": "< 5.1.1"}]}, {"vendor": "org.openidentityplatform.opendj", "product": "opendj-server-legacy", "versions": [{"status": "affected", "version": "< 5.1.1"}]}], "references": [{"url": "https://github.com/OpenIdentityPlatform/OpenDJ/security/advisories/GHSA-43x2-g84q-fmqx", "name": "https://github.com/OpenIdentityPlatform/OpenDJ/security/advisories/GHSA-43x2-g84q-fmqx", "tags": ["x_refsource_CONFIRM"]}, {"url": "https://github.com/OpenIdentityPlatform/OpenDJ/pull/651", "name": "https://github.com/OpenIdentityPlatform/OpenDJ/pull/651", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/OpenIdentityPlatform/OpenDJ/commit/7e3a75903159153c877daeb2952a552701e38044", "name": "https://github.com/OpenIdentityPlatform/OpenDJ/commit/7e3a75903159153c877daeb2952a552701e38044", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/OpenIdentityPlatform/OpenDJ/commit/d4a95c2e37c375756f9829c7ec43a4785b99e2e2", "name": "https://github.com/OpenIdentityPlatform/OpenDJ/commit/d4a95c2e37c375756f9829c7ec43a4785b99e2e2", "tags": ["x_refsource_MISC"]}, {"url": "https://github.com/OpenIdentityPlatform/OpenDJ/releases/tag/5.1.1", "name": "https://github.com/OpenIdentityPlatform/OpenDJ/releases/tag/5.1.1", "tags": ["x_refsource_MISC"]}], "descriptions": [{"lang": "en", "value": "OpenDJ is an LDAPv3 compliant directory service. Prior to 5.1.1, the JMX RMI connector in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiConnector.java processes attacker-controlled credential objects before authentication without a restrictive jmx.remote.rmi.server.credentials.filter.pattern, and RmiAuthenticator.authenticate in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiAuthenticator.java accepts an unconstrained Object array rather than a two-element String[]. When the JMX Connection Handler is enabled and its TCP listener is reachable, an unauthenticated remote attacker can submit a crafted serialized Java object and achieve code execution in the OpenDJ server process. The handler is disabled by default, and successful exploitation depends on the runtime classpath and Java version; remote code execution was demonstrated against OpenDJ 4.4.15 on JDK 11 with Jackson 2.12.6.1. This issue is fixed in 5.1.1."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-502", "description": "CWE-502: Deserialization of Untrusted Data"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-15T14:09:30.669Z"}}}, "cveMetadata": {"cveId": "CVE-2026-46495", "state": "PUBLISHED", "dateUpdated": "2026-09-15T14:48:13.800Z", "dateReserved": "2026-05-14T18:06:06.811Z", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "datePublished": "2026-09-15T14:09:30.669Z", "assignerShortName": "GitHub_M"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"product": "OpenDJ", "vendor": "OpenIdentityPlatform", "versions": [{"status": "affected", "version": "< 5.1.1"}]}, {"product": "opendj-server-legacy", "vendor": "org.openidentityplatform.opendj", "versions": [{"status": "affected", "version": "< 5.1.1"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "OpenDJ is an LDAPv3 compliant directory service. Prior to 5.1.1, the JMX RMI connector in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiConnector.java processes attacker-controlled credential objects before authentication without a restrictive jmx.remote.rmi.server.credentials.filter.pattern, and RmiAuthenticator.authenticate in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiAuthenticator.java accepts an unconstrained Object array rather than a two-element String[]. When the JMX Connection Handler is enabled and its TCP listener is reachable, an unauthenticated remote attacker can submit a crafted serialized Java object and achieve code execution in the OpenDJ server process. The handler is disabled by default, and successful exploitation depends on the runtime classpath and Java version; remote code execution was demonstrated against OpenDJ 4.4.15 on JDK 11 with Jackson 2.12.6.1. This issue is fixed in 5.1.1."}], "id": "CVE-2026-46495", "lastModified": "2026-09-25T14:23:59.847", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 9.2, "baseSeverity": "CRITICAL", "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": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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-2026-46495", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-15T14:48:04.687911Z", "version": "2.0.3"}}]}, "published": "2026-09-15T15:17:15.493", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/OpenIdentityPlatform/OpenDJ/commit/7e3a75903159153c877daeb2952a552701e38044"}, {"source": "security-advisories@github.com", "url": "https://github.com/OpenIdentityPlatform/OpenDJ/commit/d4a95c2e37c375756f9829c7ec43a4785b99e2e2"}, {"source": "security-advisories@github.com", "url": "https://github.com/OpenIdentityPlatform/OpenDJ/pull/651"}, {"source": "security-advisories@github.com", "url": "https://github.com/OpenIdentityPlatform/OpenDJ/releases/tag/5.1.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/OpenIdentityPlatform/OpenDJ/security/advisories/GHSA-43x2-g84q-fmqx"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-502"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.1.1)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "OpenDJ", "source": "cna", "vendor": "OpenIdentityPlatform"}, "product": "opendj", "vendor": "openidentityplatform"}], "created": "2026-09-16T04:00:13.359771+00:00", "updated": "2026-09-17T19:59:05.865264+00:00", "vendors": ["openidentityplatform", "openidentityplatform$PRODUCT$opendj"]}