Direct Request ('Forced Browsing') in Red Hat build of Keycloak - CVE-2026-11986
Published: September 11, 2026
Vulnerability identifier: #VU148987
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-11986
CWE-ID: CWE-425
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to remove highly privileged roles from other users or groups.
The vulnerability exists due to missing granular authorization checks in the admin-ui-ext bulk role-mapping-delete endpoints when deleting role mappings. A remote privileged user can use the bulk role-removal endpoints to remove highly privileged roles from other users or groups.
Affected software
Red Hat build of Keycloak
How to mitigate CVE-2026-11986
Install security update from vendor's website.
Red Hat build of Keycloak - update to 26.6.5