A flaw was found in the Fine-Grained Admin Permissions (FGAP) v2 implementation within Keycloak's administrative services. When FGAP v2 is enabled, the system fails to properly filter child groups based on the caller's specific permissions when requested through a parent group. This allows a delegated administrator to view details of child groups they are not authorized to access directly, including group names, paths, and custom attributes.
Fix
Patch, vendor advisory and mitigation references on NVD 6
- https://access.redhat.com/errata/RHSA-2026:50846 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:50847 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:50848 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:50849 Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-14615 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2496891 Issue Tracking, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 2.7 · redhatNVD modified 2026-10-25 15:10
Affected (CPE criteria) 1
cpe:2.3:a:redhat:build_of_keycloak:*:*:*:*:*:*:*:*
References 6
- https://access.redhat.com/errata/RHSA-2026:50846 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:50847 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:50848 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:50849 Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-14615 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2496891 Issue Tracking, Vendor Advisory