CVE-2026-14209
Keycloak-admin-ui: keycloak-admin-ui: keycloak: admin ui extension brute-force-user endpoint bypasses fgapv2 user view restrictions
Description
A vulnerability was discovered in Keycloak's Admin UI extension that allows certain administrative users to bypass security restrictions. When Fine-Grained Admin Permissions (FGAPv2) are enabled, an administrator who should only be able to search for users (but not view their full details) can use a specific "brute-force-user" endpoint to access a user's full profile. This includes sensitive information and security metadata. The issue occurs because the system fails to check if the administrator has the required "view" permission for that specific user when using this particular search path.
INFO
Published Date :
June 30, 2026, 11:48 a.m.
Last Modified :
June 30, 2026, 11:48 a.m.
Remotely Exploit :
Yes !
Source :
redhat
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 53f830b8-0a3f-465b-8143-3b8a9948e749 |
Solution
- Update Keycloak to the latest patched version.
- Verify FGAPv2 configurations and permissions.
- Test administrative user access controls thoroughly.
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