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Medium · 5.3 CVE-2026-19608 EUVD-2026-60581GHSA-qxf7-g44v-fgwh

Keycloak-services: keycloak-services: name-only group claims let same-name groups satisfy path-specific group policies

Published Aug 18, 2026 · Updated Nov 6, 2026 · Assigned by redhat

Description

A flaw was found in the group policy provider of Keycloak authorization services, which is used to manage fine-grained access control to resources. The issue occurs when the system evaluates group-based policies using tokens that only contain group names rather than full paths. If two groups in different parts of the organization share the same name, a user in the unauthorized group can be mistaken for a member of the authorized group. This can allow a user to gain unauthorized access to protected resources they should not be able to reach.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat build of Keycloak 26.6 — —
Red Hat Red Hat build of Keycloak 26.6.8 — —
Red Hat Red Hat Single Sign-On 7 — —

References