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CVE-2026-18218

Keycloak-services: keycloak-services: client not-before revocation ignored when realm not-before is older but nonzero

Published
Last modified
published
Not listed in CISA KEV
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

Summary

A flaw was found in the TokenManager component of the Keycloak identity management service. When an administrator attempts to revoke tokens for a specific application (client) using a "not-before" policy, the revocation may be silently ignored if the overall security realm already has an older, non-zero revocation policy in place. This issue can allow previously issued tokens to remain valid for refreshing sessions and accessing user information even after an administrator has attempted to invalidate them. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • rhbk/keycloak-operator-bundle

    Version range not reported

  • rhbk/keycloak-rhel9

    Version range not reported

  • rhbk/keycloak-rhel9-operator

    Version range not reported

  • keycloak-services

    Version range not reported

  • rhbk-keycloak-rhel9/rhbk-keycloak-rhel9

    Version range not reported

  • rhbk-openshift-rhel9/rhbk-openshift-rhel9

    Version range not reported

  • keycloak-services

    Version range not reported

  • keycloak-services

    Version range not reported

  • keycloak-services

    Version range not reported

References 4

access.redhat.com

bugzilla.redhat.com