CVE-2026-8922
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Summary
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 This allows tokens that should have been revoked to remain active, potentially leading to unauthorized access or continued session validity.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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4.13-1 < * | unaffected |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-19 < * | unaffected |
| Red Hat | Red Hat build of Keycloak 26.4 | 26.4-19 < * | unaffected |
| Red Hat | Red Hat build of Keycloak 26.6 | 26.6.3-3 < * | unaffected |
| Red Hat | Red Hat build of Keycloak 26.6 | 26.6-6 < * | unaffected |
| Red Hat | Red Hat build of Keycloak 26.6 | 26.6-6 < * | unaffected |
Weaknesses
- CWE-303: Incorrect Implementation of Authentication Algorithm
Workarounds
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://access.redhat.com/errata/RHSA-2026:25097
- https://access.redhat.com/errata/RHSA-2026:25098
- https://access.redhat.com/errata/RHSA-2026:30049
- https://access.redhat.com/errata/RHSA-2026:30050
- https://access.redhat.com/security/cve/CVE-2026-8922
- https://bugzilla.redhat.com/show_bug.cgi?id=2479586
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