CVE-2026-82633 PUBLISHED

Dolibarr versions 10.0.0 before 24.0.0 fail to perform per-object authorization checks in the Users::getGroups REST API endpoint, allowing authenticated users to retrieve group memberships of other users. Attackers can call GET /users/{id}/groups with arbitrary user identifiers to access group names, entity associations, and private notes across tenant boundaries.

• Michael Holmquist (Hasp Labs) finder

• Patch Commit
• https://github.com/Dolibarr/dolibarr/blob/23.0.4/htdocs/user/class/api_users.class.php
• Dolibarr 24.0.0 Release Notes
• https://github.com/Dolibarr/dolibarr
• VulnCheck Advisory: Dolibarr 10.0.0 before 24.0.0 Missing Authorization on REST Users Groups Endpoint

• Missing Authorization CWE