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Status published
Medium
CVE-2025-13467
Org.keycloak.storage.ldap: keycloak: deserialization of untrusted data in ldap user federation
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Red Hat would like to thank Icare & truff (YWH) for reporting this issue.
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
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Affected Vendor
Keycloak
View all reports →Affected Software
Keycloak, Red Hat build of Keycloak 26.2, Red Hat build of Keycloak 26.2.11, Red Hat build of Keycloak 26.4, Red Hat build of Keycloak 26.4.6
Vulnerable Versions:
0, 26.2.11-1, 26.2-12, 26.4.6-1, 26.4-6, 26.4-5
Timeline
Official Publish:
November 25th, 2025
Last Modified:
December 23rd, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N