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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

Description (CNA)

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. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

Affected (CNA)

Vendor / productVersions
Red Hat / Red Hat build of Keycloak 26.6unaffected 26.6.7-3 before *
Red Hat / Red Hat build of Keycloak 26.6unaffected 26.6-20 before *
Red Hat / Red Hat build of Keycloak 26.6unaffected 26.6-20 before *
Red Hat / Red Hat build of Keycloak 26.6.7unaffected
Red Hat / Red Hat build of Keycloak 26.6.7unaffected
Red Hat / Red Hat build of Keycloak 26.6.7unaffected
Red Hat / Red Hat Data Grid 8unaffected
Red Hat / Red Hat JBoss Enterprise Application Platform Expansion Packunaffected
Red Hat / Red Hat Single Sign-On 7unaffected

CWE

CWE-862

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.