CVE-2026-16106: Red Hat Build Of Keycloak

Medium severity, CVSS 4.9. EPSS: 0.4% chance of exploitation in the next 30 days.

A flaw was found in the admin REST API of Keycloak, a solution for identity and access management. The issue occurs when a delegated administrator attempts to remove a child role from a composite role. Due to missing authorization checks, an attacker with limited administrative permissions can remove privileged roles they are not authorized to manage, leading to a loss of access for other users and administrators.

Affected products

• Red Hat Build Of Keycloak: affected versions not specified

Published 2026-07-17. Last modified 2026-09-16.