CVE-2026-40976

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"devspaces/openvsx-rhel9", "product": "Red Hat OpenShift Dev Spaces", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:openshift_devspaces:3"], "defaultStatus": "unaffected", "packageName": "devspaces/pluginregistry-rhel9", "product": "Red Hat OpenShift Dev Spaces", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:jboss_enterprise_bpms_platform:7"], "defaultStatus": "unaffected", "packageName": "spring-boot", "product": "Red Hat Process Automation 7", "vendor": "Red Hat"}, {"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:red_hat_single_sign_on:7"], "defaultStatus": "unaffected", "packageName": "spring-boot", "product": "Red Hat Single Sign-On 7", "vendor": "Red Hat"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:vmware:spring_boot:*:*:*:*:*:*:*:*", "matchCriteriaId": "12A166C5-8B55-4BA3-AA8B-6024A257D441", "versionEndExcluding": "4.0.6", "versionStartIncluding": "4.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In certain circumstances, Spring Boot's default web security is ineffective allowing unauthorized access to all endpoints. For an application to be vulnerable, it must: be a servlet-based web application; have no Spring Security configuration of its own and rely on the default web security filter chain; depend on spring-boot-actuator-autoconfigure; not depend on spring-boot-health. If any of the above does not apply, the application is not vulnerable.\n\nAffected: Spring Boot 4.0.0\u20134.0.5; upgrade to 4.0.6 or later per vendor advisory."}, {"lang": "es", "value": "En ciertas circunstancias, la seguridad web predeterminada de Spring Boot es ineficaz, permitiendo el acceso no autorizado a todos los puntos finales. Para que una aplicaci\u00f3n sea vulnerable, debe: ser una aplicaci\u00f3n web basada en servlets; no tener configuraci\u00f3n propia de Spring Security y depender de la cadena de filtros de seguridad web predeterminada; depender de spring-boot-actuator-autoconfigure; no depender de spring-boot-health. Si alguna de las condiciones anteriores no se cumple, la aplicaci\u00f3n no es vulnerable.\n\nAfectado: Spring Boot 4.0.0-4.0.5; actualizar a 4.0.6 o posterior seg\u00fan el aviso del proveedor."}], "id": "CVE-2026-40976", "lastModified": "2026-07-24T21:10:00.143", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "security@vmware.com", "type": "Secondary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.2, "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-40976", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-04-28T00:00:00+00:00", "version": "2.0.3"}}]}, "published": "2026-04-28T00:16:24.803", "references": [{"source": "security@vmware.com", "tags": ["Vendor Advisory"], "url": "https://spring.io/security/cve-2026-40976"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://access.redhat.com/security/cve/CVE-2026-40976"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2463322"}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40976.json"}], "sourceIdentifier": "security@vmware.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "security@vmware.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-305"}], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "type": "Secondary"}]}

{"bugzilla": {"description": "Spring Boot: Spring Boot: Security bypass due to ineffective default web security", "id": "2463322", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2463322"}, "csaw": false, "cvss3": {"cvss3_base_score": "9.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N", "status": "draft"}, "cwe": "CWE-305", "details": ["A flaw was found in Spring Boot. Under specific conditions, including being a servlet-based web application without custom Spring Security configuration and relying on the default web security filter chain, a remote attacker could bypass security. This allows unauthorized access to all application endpoints, leading to potential information disclosure and circumvention of security controls."], "mitigation": {"lang": "en:us", "value": "To mitigate this flaw, ensure that Spring Boot applications either implement their own Spring Security configuration, thereby not relying on the default web security filter chain, or include a dependency on `spring-boot-health`. Applications that do not meet all the specific conditions outlined for vulnerability are not affected. If `spring-boot-actuator-autoconfigure` is not strictly required, consider removing it."}, "name": "CVE-2026-40976", "package_state": [{"cpe": "cpe:/a:redhat:amq_broker:7", "fix_state": "Not affected", "package_name": "spring-boot", "product_name": "Red Hat AMQ Broker 7"}, {"cpe": "cpe:/a:redhat:amq_broker:7", "fix_state": "Not affected", "package_name": "spring-boot-actuator-autoconfigure", "product_name": "Red Hat AMQ Broker 7"}, {"cpe": "cpe:/a:redhat:amq_clients:2023", "fix_state": "Not affected", "package_name": "spring-boot", "product_name": "Red Hat AMQ Clients"}, {"cpe": "cpe:/a:redhat:camel_spring_boot:4", "fix_state": "Not affected", "package_name": "spring-boot", "product_name": "Red Hat build of Apache Camel for Spring Boot 4"}, {"cpe": "cpe:/a:redhat:camel_spring_boot:4", "fix_state": "Not affected", "package_name": "spring-boot-actuator-autoconfigure", "product_name": "Red Hat build of Apache Camel for Spring Boot 4"}, {"cpe": "cpe:/a:redhat:apache_camel_hawtio:4", "fix_state": "Not affected", "package_name": "spring-boot", "product_name": "Red Hat build of Apache Camel - HawtIO 4"}, {"cpe": "cpe:/a:redhat:apache_camel_hawtio:4", "fix_state": "Not affected", "package_name": "spring-boot-actuator-autoconfigure", "product_name": "Red Hat build of Apache Camel - HawtIO 4"}, {"cpe": "cpe:/a:redhat:optaplanner:::el6", "fix_state": "Not affected", "package_name": "spring-boot", "product_name": "Red Hat build of OptaPlanner 8"}, {"cpe": "cpe:/a:redhat:jboss_data_grid:8", "fix_state": "Affected", "package_name": "spring-boot", "product_name": "Red Hat Data Grid 8"}, {"cpe": "cpe:/a:redhat:jboss_data_grid:8", "fix_state": "Not affected", "package_name": "spring-boot-actuator-autoconfigure", "product_name": "Red Hat Data Grid 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "log4j:2/log4j", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "log4j", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Not affected", "package_name": "spring-boot", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Not affected", "package_name": "spring-boot-actuator-autoconfigure", "product_name": "Red Hat Fuse 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Not affected", "package_name": "spring-boot", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:7", "fix_state": "Not affected", "package_name": "spring-boot-actuator-autoconfigure", "product_name": "Red Hat JBoss Enterprise Application Platform 7"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Not affected", "package_name": "spring-boot", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_application_platform:8", "fix_state": "Not affected", "package_name": "spring-boot-actuator-autoconfigure", "product_name": "Red Hat JBoss Enterprise Application Platform 8"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Not affected", "package_name": "spring-boot", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:jbosseapxp", "fix_state": "Not affected", "package_name": "spring-boot-actuator-autoconfigure", "product_name": "Red Hat JBoss Enterprise Application Platform Expansion Pack"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Not affected", "package_name": "devspaces/openvsx-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Not affected", "package_name": "devspaces/pluginregistry-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:jboss_enterprise_bpms_platform:7", "fix_state": "Not affected", "package_name": "spring-boot", "product_name": "Red Hat Process Automation 7"}, {"cpe": "cpe:/a:redhat:red_hat_single_sign_on:7", "fix_state": "Not affected", "package_name": "spring-boot", "product_name": "Red Hat Single Sign-On 7"}], "public_date": "2026-04-27T23:34:51Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-40976\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-40976\nhttps://spring.io/security/cve-2026-40976"], "statement": "This is an Important flaw in Spring Boot that allows security bypass under specific application configurations. When a servlet-based web application lacks custom Spring Security configuration, relies on the default web security filter chain, depends on `spring-boot-actuator-autoconfigure`, and does not include `spring-boot-health`, an attacker can gain unauthorized access to all application endpoints. Red Hat JBoss Data Grid (jdg-8.6) is affected by this vulnerability.", "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[4.0.0,4.0.6)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Spring Boot", "source": "cna", "vendor": "Spring"}, "product": "spring_boot", "vendor": "spring"}], "created": "2026-04-28T04:15:15.758384+00:00", "updated": "2026-05-14T14:30:16.328776+00:00", "vendors": ["spring", "spring$PRODUCT$spring_boot"]}