{"id":"CVE-2025-14778","aliases":[],"url":"https://o3.security/vulnerability/CVE-2025-14778","summary":"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…","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":"2026-02-09T18:58:29.065Z","modified":"2026-02-10T01:04:37.407Z","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":[],"fix":null,"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:2363"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:2364"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:2365"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:2366"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2025-14778"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2422600"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-02-10T01:04:37.407Z"}}