CVE-2025-11429 (CVSS 5.4)

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.

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CVSS v3.1 Score

5.4

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-613 CWE-613

References

Other 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

Frequently Asked Questions

What is CVE-2025-11429? +

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. It has a CVSS v3.1 base score of 5.4 (MEDIUM).

How severe is CVE-2025-11429? +

CVE-2025-11429 has a CVSS v3.1 score of 5.4 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2025-11429? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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