CVE-2025-13467
Org.keycloak.storage.ldap: keycloak: deserialization of untrusted data in ldap user federation
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Timeline
ID reserved
By redhat
- 5 days later
· 5 days later
Published
- 28 days later
· 28 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | Medium5.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N |
| NVDNVD · Deferred | 3.1 | Medium5.5 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.47% · top 59% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
- affected < 26.4.6
Red Hat · Red Hat build of Keycloak 26.2
- unaffected 26.2.11-1 – < *
Red Hat · Red Hat build of Keycloak 26.2
- unaffected 26.2-12 – < *
Red Hat · Red Hat build of Keycloak 26.2
- unaffected 26.2-12 – < *
Red Hat · Red Hat build of Keycloak 26.2.11
All versions: unaffected
Red Hat · Red Hat build of Keycloak 26.4
- unaffected 26.4.6-1 – < *
Red Hat · Red Hat build of Keycloak 26.4
- unaffected 26.4-6 – < *
Red Hat · Red Hat build of Keycloak 26.4
- unaffected 26.4-5 – < *
Red Hat · Red Hat build of Keycloak 26.4.6
All versions: unaffected
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.keycloak:keycloak-ldap-federationGHSA-4hx9-48xh-5mxr (opens in a new tab)
What to do
Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
References (8)
- RHSA-2025:22088 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2025:22089 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2025:22090 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2025:22091 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2025-13467 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2416038 (opens in a new tab)issue-trackingx_refsource_REDHAT
- https://github.com/keycloak/keycloak/commit/754c070cf8ca187dcc71f0f72ff3130ff2195328 (opens in a new tab)
- https://github.com/keycloak/keycloak/issues/44478 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-4hx9-48xh-5mxr (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2025-13467)Record last updated .