{"id":"CVE-2026-23552","summary":"Apache Camel: Camel-Keycloak: Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy","details":"Cross-Realm Token Acceptance Bypass in KeycloakSecurityPolicy Apache Camel Keycloak component. \n\nThe Camel-Keycloak KeycloakSecurityPolicy does not validate the iss (issuer) claim of JWT tokens against the configured realm. A token issued by one Keycloak realm is silently accepted by a policy configured for a completely different realm, breaking tenant isolation.\nThis issue affects Apache Camel: from 4.15.0 before 4.18.0.\n\nUsers are recommended to upgrade to version 4.18.0, which fixes the issue.","aliases":["GHSA-c3f3-cc42-xr9v"],"modified":"2026-08-12T03:51:40.606470977Z","published":"2026-02-23T08:45:36.154Z","database_specific":{"cna_assigner":"apache","cwe_ids":["CWE-346"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23552.json","unresolved_ranges":[{"extracted_events":[{"introduced":"4.15.0"},{"fixed":"4.18.0"}],"source":"AFFECTED_FIELD"},{"extracted_events":[{"introduced":"4.15.0"},{"fixed":"4.18.0"}],"source":"DESCRIPTION"}]},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/02/18/7"},{"type":"WEB","url":"https://repo.maven.apache.org/maven2"},{"type":"ADVISORY","url":"https://camel.apache.org/security/CVE-2026-23552.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23552.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23552"},{"type":"EVIDENCE","url":"https://github.com/oscerd/CVE-2026-23552"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/camel","events":[{"introduced":"038f1b2acd0b2ee78e4bb84cd3139e64610bb259"},{"fixed":"dd22f752e240bd1343af15c775ef02d754f6df38"}],"database_specific":{"extracted_events":[{"introduced":"4.15.0"},{"fixed":"4.18.0"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:apache:camel:*:*:*:*:*:*:*:*"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23552.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"}]}