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OpenAdvisories
Medium · 5.9 CVE-2026-79652 EUVD-2026-65465GHSA-9f9p-c2v5-98rx

Keycloak-services: keycloak-services: jwt bearer authorization grant does not enforce consentrequired

Published Aug 25, 2026 · Updated Sep 16, 2026 · Assigned by redhat

Description

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

VendorProductAffectedFixed
Red Hat Red Hat build of Keycloak 26.6 — —
Red Hat Red Hat build of Keycloak 26.6.7 — —
Red Hat Red Hat Single Sign-On 7 — —

Advisories 1

References