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.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Keycloak | Keycloak | < 26.4.6 |
| Red Hat | Red Hat build of Keycloak 26.2 | — |
| Red Hat | Red Hat build of Keycloak 26.2 | — |
| Red Hat | Red Hat build of Keycloak 26.2 | — |
| Red Hat | Red Hat build of Keycloak 26.2.11 | — |
| Red Hat | Red Hat build of Keycloak 26.4 | — |
| Red Hat | Red Hat build of Keycloak 26.4 | — |
| Red Hat | Red Hat build of Keycloak 26.4 | — |
| Red Hat | Red Hat build of Keycloak 26.4.6 | — |
References
- https://access.redhat.com/errata/RHSA-2025:22088
- https://access.redhat.com/errata/RHSA-2025:22089
- https://access.redhat.com/errata/RHSA-2025:22090
- https://access.redhat.com/errata/RHSA-2025:22091
- https://access.redhat.com/security/cve/CVE-2025-13467
- https://bugzilla.redhat.com/show_bug.cgi?id=2416038
- https://github.com/keycloak/keycloak/commit/754c070cf8ca187dcc71f0f72ff3130ff2195328
- https://github.com/keycloak/keycloak/issues/44478
Timeline
- Published
- Nov 25, 2025
- Last modified
- Oct 18, 2026
- NVD status
- Deferred