CVE-2026-79652: Red Hat Build Of Keycloak 26.6

Medium severity, CVSS 5.9. EPSS: 0.3% chance of exploitation in the next 30 days.

A flaw was found in the JWT Bearer authorization grant implementation within the keycloak-services component of Red Hat Build of Keycloak. This component handles various OAuth2 and OpenID Connect grant types used for issuing access tokens. The issue occurs because the JWT Bearer grant fails to check if a client requires user consent before issuing a token. This allows an authenticated attacker with valid client credentials and a trusted identity provider assertion to bypass the consent requirement and obtain unauthorized access to a user account at a consent-gated client.

Affected products

• Red Hat Red Hat Build Of Keycloak 26.6: before 26.6.7-3 (fixed in 26.6.7-3); before 26.6-20 (fixed in 26.6-20)
• Red Hat Red Hat Build Of Keycloak 26.6.7
• Red Hat Red Hat Single Sign-On 7

Published 2026-08-25. Last modified 2026-09-28.