{"id":"CVE-2025-14778","aliases":[],"url":"https://o3.security/vulnerability/CVE-2025-14778","summary":"Keycloak Affected by Broken Access Control Vulnerability in the UserManagedPermissionService","details":"A flaw was found in Keycloak. A significant Broken Access Control vulnerability exists in the UserManagedPermissionService (UMA Protection API). When updating or deleting a UMA policy associated with multiple resources, the authorization check only verifies the caller's ownership against the first resource in the policy's list. This allows a user (Owner A) who owns one resource (RA) to update a shared policy and modify authorization rules for other resources (e.g., RB) in that same policy, even if those other resources are owned by a different user (Owner B). This constitutes a horizontal privilege escalation.","published":"2026-02-09T21:31:03Z","modified":"2026-02-13T22:56:18.207243Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.keycloak:keycloak-services","fixedVersion":"26.2.13"},{"ecosystem":"Maven","name":"org.keycloak:keycloak-services","fixedVersion":"26.5.3"},{"ecosystem":"Maven","name":"org.keycloak:keycloak-services","fixedVersion":"26.4.9"}],"fix":{"url":"https://github.com/keycloak/keycloak/pull/46154","label":"keycloak/keycloak#46154"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-14778"},{"type":"WEB","url":"https://github.com/keycloak/keycloak/issues/46147"},{"type":"WEB","url":"https://github.com/keycloak/keycloak/pull/46154"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2363"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2364"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2365"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:2366"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2025-14778"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2422600"},{"type":"PACKAGE","url":"https://github.com/keycloak/keycloak"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-02-13T22:56:18.207243Z"}}