Description
A flaw was found in the admin-ui-ext component of Keycloak, which provides extended administrative user interface capabilities. The issue occurs because certain bulk role-removal endpoints fail to perform granular permission checks when deleting role mappings. This allows a delegated administrator with limited permissions to remove highly privileged roles from other users or groups, potentially disrupting administrative access control.
Problem types
Direct Request ('Forced Browsing')
Product status
Timeline
| 2026-06-08: | Reported to Red Hat. |
| 2026-06-11: | Made public. |
Credits
Red Hat would like to thank Wesley "Alardiians" Colquitt (Byteshyft Studios) for reporting this issue.
References
access.redhat.com/security/cve/CVE-2026-11986
bugzilla.redhat.com/show_bug.cgi?id=2487906 (RHBZ#2487906)