RHSA-2025:22089MediumCVSS 6.0

Red Hat Security Advisory: Red Hat build of Keycloak 26.2.11 Security Update

Published
November 25, 2025
Last Modified
August 4, 2026

🔗 CVE IDs covered (5)

CVE-2025-12110 →CVE-2025-12150 →CVE-2025-12390 →CVE-2025-13467 →CVE-2025-11429 →

📋 Description

CVE-2025-11429 — keycloak-server: Too long and not settings compliant session CVE-2025-12110 — keycloak: org.keycloak:keycloak-services: User can refresh offline session even after client's offline_access scope was removed CVE-2025-12150 — org.keycloak/keycloak-services: WebAuthn Attestation Statement Verification Bypass CVE-2025-12390 — org.keycloak.protocol.oidc.endpoints.LogoutEndpoint: Offline Session takeover due to reused Authentication Session ID CVE-2025-13467 — org.keycloak.storage.ldap: Keycloak: Deserialization of Untrusted Data in LDAP User Federation

🎯 Affected products1

  • Red Hat build of Keycloak 26.2.11

✅ Remediation

Before applying the update, back up your existing installation, including all applications, configuration files, databases and database settings, and so on. 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 (3)