Keycloak-admin-ui: keycloak-admin-ui:admin ui extension brute-force-user endpoint bypasses fgapv2 user view restrictions (Red Hat Red Hat build of Keycloak 26.4)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.39 % · percentile 33 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-639 — Authorization Bypass Through User-Controlled Key
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | redhat |
| CVSS 3.1 | MEDIUM 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | NVD · secalert@redhat.com (Secondary) |
European references
- ENISA EUVD · EUVD-2026-40299
- GCVE · GCVE-0-2026-14209
Affected configurations (NVD CPE)
cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:*:*:*:*cpe:2.3:a:redhat:jboss_enterprise_application_platform_expansion_pack:-:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Red Hat · Red Hat build of Keycloak 26.4 | unaffected 26.4.14-1 < * |
| Red Hat · Red Hat build of Keycloak 26.4 | unaffected 26.4-22 < * |
| Red Hat · Red Hat build of Keycloak 26.4 | unaffected 26.4-22 < * |
| Red Hat · Red Hat build of Keycloak 26.4.14 | |
| Red Hat · Red Hat build of Keycloak 26.4.14 | |
| Red Hat · Red Hat build of Keycloak 26.6 | unaffected 26.6.5-1 < * |
| Red Hat · Red Hat build of Keycloak 26.6 | unaffected 26.6-11 < * |
| Red Hat · Red Hat build of Keycloak 26.6 | unaffected 26.6-11 < * |
| Red Hat · Red Hat build of Keycloak 26.6.5 | |
| Red Hat · Red Hat build of Keycloak 26.6.5 | |
| Red Hat · Red Hat build of Keycloak 26.6.5 | |
| Red Hat · Red Hat JBoss Enterprise Application Platform Expansion Pack |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |