Keycloak-server: too long and not settings compliant session
Vulnerability Description
A flaw was found in Keycloak. Keycloak does not immediately enforce the disabling of the "Remember Me" realm setting on existing user sessions. Sessions created while "Remember Me" was active retain their extended session lifetime until they expire, overriding the administrator's recent security configuration change. This is a logic flaw in session management increases the potential window for successful session hijacking or unauthorized long-term access persistence. The flaw lies in the session expiration logic relying on the session-local "remember-me" flag without validating the current realm-level 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:
- This issue was discovered by Alexander Schwartz (Red Hat).
References
- https://access.redhat.com/errata/RHSA-2025:22088
- https://access.redhat.com/errata/RHSA-2025:22089
- https://access.redhat.com/security/cve/CVE-2025-11429
- https://bugzilla.redhat.com/show_bug.cgi?id=2402148
- https://github.com/keycloak/keycloak/commit/a34094100716b7c69ae38eaed6678ab4344d0a1d
- https://github.com/keycloak/keycloak/commit/bda0e2a67c8cf41d1b3d9010e6dfcddaf79bf59b
- https://github.com/keycloak/keycloak/issues/43328
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Keycloak
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