CVE-2026-4629: Red Hat Build Of Keycloak

Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days.

A flaw was found in Keycloak. A highly privileged user with `manage-clients` permission can exploit this vulnerability by injecting a hardcoded role mapper into any client. This action allows the user to bypass existing scope restrictions and inject the `realm-admin` role into generated tokens, resulting in privilege escalation and full administrative access to the realm.

Affected products

• Red Hat Build Of Keycloak: affected versions not specified

Published 2026-06-30. Last modified 2026-08-05.