CVE-2026-8922 MEDIUM

CVE-2026-8922: Org.keycloak/keycloak-services: keycloak: org.keycloak.protocol.oidc: security flaw in org.keycloak/keycloak-services

Vendor Red Hat
Product Red Hat build of Keycloak 26.6.3
Weakness CWE-303
Published May 19, 2026
Last update June 10, 2026
View on NVD All CVEs

CVSS base score

5.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

A flaw was found in Keycloak. When both realm-level and client-level `notBefore` revocation policies are configured, Keycloak's OpenID Connect (OIDC) Introspection feature fails to properly honor the realm-level policy. This allows tokens that should have been revoked to remain active, potentially leading to unauthorized access or continued session validity. This could impact the security of systems utilizing Keycloak for identity and access management.

Key dates

02Disclosure timeline

May 19, 2026 CVE published
June 10, 2026 Record updated