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TI-2025-12311 Aliases CVE-2025-13467GHSA-4hx9-48xh-5mxr

Org.keycloak.storage.ldap: keycloak: deserialization of untrusted data in ldap user federation

Priority LOW 25CWE-502Published · Updated

Key facts

Attack vector
Network
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-502.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00472 41st percentileScored 2026-11-07
Fix Fixed Keycloak (Keycloak): 26.4.6org.keycloak:keycloak-ldap-federation (Maven): 26.4.6, 26.2.11Red Hat: 4 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
KeycloakKeycloakbefore 26.4.626.4.6Patch availableCNA
Red HatRed Hat build of Keycloak 26.2—26.2.11-1Patch availableCNA
Red HatRed Hat build of Keycloak 26.2—26.2-12Patch availableCNA
Red HatRed Hat build of Keycloak 26.2—26.2-12Patch availableCNA
Red HatRed Hat build of Keycloak 26.2.11——Not affectedCNA
Red HatRed Hat build of Keycloak 26.4—26.4.6-1Patch availableCNA
Red HatRed Hat build of Keycloak 26.4—26.4-6Patch availableCNA
Red HatRed Hat build of Keycloak 26.4—26.4-5Patch availableCNA
Red HatRed Hat build of Keycloak 26.4.6——Not affectedCNA
—org.keycloak:keycloak-ldap-federation (Maven)26.3.0 to before 26.4.626.4.6Patch availableGHSA-4hx9-48xh-5mxr
—org.keycloak:keycloak-ldap-federation (Maven)before 26.2.1126.2.11Patch availableGHSA-4hx9-48xh-5mxr
  • Keycloak VendorKeycloak Affected before 26.4.6 Fixed in 26.4.6 Patch available CNA
  • Red Hat build of Keycloak 26.2 VendorRed Hat Affected — Fixed in 26.2.11-1 Patch available CNA
  • Red Hat build of Keycloak 26.2 VendorRed Hat Affected — Fixed in 26.2-12 Patch available CNA
  • Red Hat build of Keycloak 26.2 VendorRed Hat Affected — Fixed in 26.2-12 Patch available CNA
  • Red Hat build of Keycloak 26.2.11 VendorRed Hat Affected — Fixed in — Not affected CNA
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4.6-1 Patch available CNA
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4-6 Patch available CNA
  • Red Hat build of Keycloak 26.4 VendorRed Hat Affected — Fixed in 26.4-5 Patch available CNA
  • Red Hat build of Keycloak 26.4.6 VendorRed Hat Affected — Fixed in — Not affected CNA
  • org.keycloak:keycloak-ldap-federation (Maven) Vendor— Affected 26.3.0 to before 26.4.6 Fixed in 26.4.6 Patch available GHSA-4hx9-48xh-5mxr
  • org.keycloak:keycloak-ldap-federation (Maven) Vendor— Affected before 26.2.11 Fixed in 26.2.11 Patch available GHSA-4hx9-48xh-5mxr

CPE names CNA · 2

CPEVersionsRoleVendor
cpe:/a:redhat:build_keycloak:26.2::el926.2—Red Hat
cpe:/a:redhat:build_keycloak:26.4::el926.4—Red Hat
  • cpe:/a:redhat:build_keycloak:26.2::el9 Versions 26.2 — ·Red Hat
  • cpe:/a:redhat:build_keycloak:26.4::el9 Versions 26.4 — ·Red Hat

Remediation

  • Fix · CNA Keycloak (Keycloak) Fixed in 26.4.6
  • Fix · GHSA-4hx9-48xh-5mxr org.keycloak:keycloak-ldap-federation (Maven) Fixed in 26.4.6 Advisory →
  • Fix · GHSA-4hx9-48xh-5mxr org.keycloak:keycloak-ldap-federation (Maven) Fixed in 26.2.11 Advisory →

Red Hat 4 advisories

  • RHSA-2025:22090 Released 2025-11-25 · Red Hat rating Moderate
    Red Hat build of Keycloak 26.4.6 Images Security Update
    • Red Hat build of Keycloak 26.4 rhbk/keycloak-operator-bundle, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9-operator
  • RHSA-2025:22088 Released 2025-11-25 · Red Hat rating Moderate
    Red Hat build of Keycloak 26.2.11 Images Security Update
    • Red Hat build of Keycloak 26.2 rhbk/keycloak-operator-bundle, rhbk/keycloak-rhel9, rhbk/keycloak-rhel9-operator
  • RHSA-2025:22091 Released 2025-11-25 · Red Hat rating Moderate
    Red Hat build of Keycloak 26.4.6 Security Update
    • Red Hat build of Keycloak 26.4.6
Show 1 more Red Hat advisories
  • RHSA-2025:22089 Released 2025-11-25 · Red Hat rating Moderate
    Red Hat build of Keycloak 26.2.11 Security Update
    • Red Hat build of Keycloak 26.2.11

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat build of Keycloak 26.2Fixed RHSA-2025:22088
Red Hat build of Keycloak 26.2.11Fixed RHSA-2025:22089
Red Hat build of Keycloak 26.4Fixed RHSA-2025:22090
Red Hat build of Keycloak 26.4.6Fixed RHSA-2025:22091

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-13467
  2. 2026-10-03 Alias added: GHSA-4hx9-48xh-5mxr

References

Advisory 5

Other 8

  • TI-2022-03994 Cross-site scripting in keycloak CVSS 3.1CRITICAL 10.0
  • TI-2017-05120 It was found that the Keycloak Node.js adapter 2.5 - 3.0 did not handle invalid tokens… CVSS 3.0CRITICAL 9.8
  • TI-2017-08952 Weak password recovery in Red Hat Keycloak CVSS 3.0HIGH 8.8
  • TI-2014-03024 The org.keycloak.services.resources.SocialResource.callback method in JBoss KeyCloak… CVSS 3.0HIGH 8.8
  • TI-2026-01295 Org.keycloak/keycloak-quarkus-server: keycloak: unauthorized access via jwt authorization grant with disabled users CVSS 3.1HIGH 8.1
  • TI-2017-08950 Insufficient session expiration in Red Hat keycloak CVSS 3.0HIGH 7.5
See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences