CVE-2026-16108
A flaw was found in the default-groups REST endpoint and realm representation of Keycloak. This component is responsible for managing groups that are automatically assigned to new users within a realm. The issue allows a delegated administrator with realm-viewing permissions to see the names and identifiers of hidden default groups, even if they lack the specific permissions to view those groups. This can lead to the exposure of sensitive organizational structures or internal group names.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 4.3
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS probability
- 0.17%
- CWE
- CWE-1220
- Published
- 2026-07-17
- Last modified
- 2026-08-31
Weakness type
Related vulnerabilities
- CVE-2026-77480 — SQL Server Elevation of Privilege Vulnerability
- CVE-2026-66814 — Microsoft SQL Server Elevation of Privilege Vulnerability
- CVE-2026-69267 — Windows Connected User Experiences and Telemetry Information Disclosure Vulnerability
- CVE-2026-78216 — AshLua eval read operations can read field-policy-protected fields via aggregates
- CVE-2026-78230 — AshAi aggregate tool can read field-policy-protected fields
- CVE-2026-15431 — HP Support Assistant – Potential Escalation of Privilege
- CVE-2026-78122 — docker-socket-proxy through 0.5.0 Insufficient Access Control Granularity Exposes Container Filesystems
- CVE-2026-40145 — Control protections bypass in BeyondTrust Endpoint Privilege Management (Windows deployment) support utility