{"id":"CVE-2025-13467","aliases":["EUVD-2025-199598","GHSA-4hx9-48xh-5mxr","GHSA-93vm-mqpw-8wh3"],"status":"published","title":"Org.keycloak.storage.ldap: keycloak: deserialization of untrusted data in ldap user federation","description":"A flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server 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hat","product":"red hat build of keycloak 26.2"},{"vendor":"red hat","product":"red hat build of keycloak 26.2.11"},{"vendor":"red hat","product":"red hat build of keycloak 26.4"},{"vendor":"red hat","product":"red hat build of keycloak 26.4.6"}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2025:22088","tags":["vendor-advisory","x_refsource_REDHAT","advisory","web"]},{"url":"https://access.redhat.com/errata/RHSA-2025:22089","tags":["vendor-advisory","x_refsource_REDHAT","advisory","web"]},{"url":"https://access.redhat.com/errata/RHSA-2025:22090","tags":["vendor-advisory","x_refsource_REDHAT","advisory","web"]},{"url":"https://access.redhat.com/errata/RHSA-2025:22091","tags":["vendor-advisory","x_refsource_REDHAT","advisory","web"]},{"url":"https://access.redhat.com/security/cve/CVE-2025-13467","tags":["vdb-entry","x_refsource_REDHAT","advisory","web"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2416038","tags":["issue-tracking","x_refsource_REDHAT","report","web"]},{"url":"https://github.com/keycloak/keycloak/commit/754c070cf8ca187dcc71f0f72ff3130ff2195328","tags":["fix","web"]},{"url":"https://github.com/keycloak/keycloak/issues/44478","tags":["report","web"]},{"url":"https://github.com/keycloak/keycloak/security/advisories/GHSA-4hx9-48xh-5mxr","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-13467","tags":["advisory"]},{"url":"https://github.com/keycloak/keycloak/releases/tag/26.4.6","tags":["web"]},{"url":"https://github.com/keycloak/keycloak/commit/b90fec41ff17a70858d830750156a8a2e13ddb82","tags":["web"]},{"url":"https://github.com/advisories/GHSA-4hx9-48xh-5mxr"},{"url":"https://github.com/advisories/GHSA-93vm-mqpw-8wh3"},{"url":"https://access.redhat.com/downloads/content/package-browser/","tags":["web"]},{"url":"https://catalog.redhat.com/software/containers/","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/13xxx/CVE-2025-13467.json","tags":["advisory"]},{"url":"https://github.com/keycloak/keycloak","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2025-13467","title":"Org.keycloak.storage.ldap: keycloak: deserialization of untrusted data in ldap user federation","description":"A flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server configuration.","status":"published","published":"2025-11-25T16:02:21.105Z","modified":"2025-12-23T21:00:22.666Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:32:43.10004Z"}],"euvd":[{"id":"EUVD-2025-199598","description":"A flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server configuration.","status":"published","published":"2025-11-25T16:02:21Z","modified":"2025-12-23T21:00:22Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:49:01.709544Z"}],"ghsa":[{"id":"GHSA-4hx9-48xh-5mxr","title":"Keycloak LDAP User Federation provider enables admin-triggered untrusted Java deserialization","description":"A flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server configuration.\n\n### Mitigation\n\nDisable LDAP referrals in all LDAP user providers in all realms if projects cannot upgrade to the patched versions.","status":"published","published":"2025-12-19T21:31:05Z","modified":"2026-02-17T17:48:46Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:39:25.82905Z"},{"id":"GHSA-93vm-mqpw-8wh3","title":"Duplicate Advisory: Keycloak LDAP User Federation provider enables admin-triggered untrusted Java deserialization","description":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-4hx9-48xh-5mxr. This link is maintained to preserve external references.\n\n### Original Description\n\nA flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server configuration.","status":"withdrawn","published":"2025-11-25T18:32:22Z","modified":"2025-12-23T21:30:24Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:39:14.093341Z"}],"nvd":[{"id":"CVE-2025-13467","description":"A flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server configuration.","status":"published","published":"2025-11-25T16:16:06.623Z","modified":"2026-10-18T20:10:00.11Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:11:46.94029Z"}],"osv":[{"id":"CVE-2025-13467","title":"Org.keycloak.storage.ldap: keycloak: deserialization of untrusted data in ldap user federation","description":"A flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server configuration.","status":"published","published":"2025-11-25T16:02:21.105Z","modified":"2026-10-28T10:59:04.981261859Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:44:46.340268Z"},{"id":"GHSA-4hx9-48xh-5mxr","title":"Keycloak LDAP User Federation provider enables admin-triggered untrusted Java deserialization","description":"A flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server configuration.\n\n### Mitigation\n\nDisable LDAP referrals in all LDAP user providers in all realms if projects cannot upgrade to the patched versions.","status":"published","published":"2025-12-19T21:31:05Z","modified":"2026-02-17T18:09:38.761427Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:46:37.148947Z"},{"id":"GHSA-93vm-mqpw-8wh3","title":"Duplicate Advisory: Keycloak LDAP User Federation provider enables admin-triggered untrusted Java deserialization","description":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-4hx9-48xh-5mxr. This link is maintained to preserve external references.\n\n### Original Description\n\nA flaw was found in the Keycloak LDAP User Federation provider. This vulnerability allows an authenticated realm administrator to trigger deserialization of untrusted Java objects via a malicious LDAP server configuration.","status":"withdrawn","published":"2025-11-25T18:32:22Z","modified":"2026-09-10T03:50:30.771264945Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:46:43.123867Z"}]}}