Affected: Red Hat build of Keycloak 26.2, Red Hat build of Keycloak 26.2.13, Red Hat build of Keycloak 26.4, Red Hat build of Keycloak 26.4.9
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'sā¦