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.
CVSS breakdown
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Affected products
References
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:50846
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:50847
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:50848
- VENDOR_ADVISORYhttps://access.redhat.com/errata/RHSA-2026:50849
- VENDOR_ADVISORYhttps://access.redhat.com/security/cve/CVE-2026-14209
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=2494837
Updated 5m ago · 8 sources