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.
Problem types
Deserialization of Untrusted Data
Product status
26.2.11-1 (rpm) before *
26.2-12 (rpm) before *
26.2-12 (rpm) before *
26.4.6-1 (rpm) before *
26.4-6 (rpm) before *
26.4-5 (rpm) before *
Timeline
| 2025-11-20: | Reported to Red Hat. |
| 2025-11-25: | Made public. |
Credits
Red Hat would like to thank Icare & truff (YWH) for reporting this issue.
References
access.redhat.com/errata/RHSA-2025:22088 (RHSA-2025:22088)
access.redhat.com/errata/RHSA-2025:22089 (RHSA-2025:22089)
access.redhat.com/errata/RHSA-2025:22090 (RHSA-2025:22090)
access.redhat.com/errata/RHSA-2025:22091 (RHSA-2025:22091)
access.redhat.com/security/cve/CVE-2025-13467
bugzilla.redhat.com/show_bug.cgi?id=2416038 (RHBZ#2416038)