CVE-2026-82633
Received Received - Intake

Dolibarr REST API Group Membership Exposure

Publication date: 2026-08-30

Last updated on: 2026-08-30

Assigner: VulnCheck

Description
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.

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Meta Information

Published
2026-08-30
Last Modified
2026-08-30
Generated
2026-08-30
AI Q&A
2026-08-30
EPSS Evaluated
N/A
NVD
CVE-2026-82633
EUVD
EUVD-2026-68201

Affected Vendors & Products

Showing 4 associated CPEs
Vendor Product Version / Range
dolibarr dolibarr to 23.0.4 (inc)
dolibarr dolibarr 24.0.0
dolibarr dolibarr to 24.0.0 (exc)
dolibarr dolibarr 23.0.4

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

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Executive Summary

CVE-2026-82633 is a missing authorization vulnerability in Dolibarr's REST API. It affects versions 10.0.0 to 23.0.4 and allows authenticated users to retrieve group memberships of other users by calling GET /users/{id}/groups with arbitrary user IDs. This exposes sensitive data like group names, entity associations, and private notes across tenant boundaries.

Detection Guidance

To detect this vulnerability, check Dolibarr versions between 10.0.0 and 23.0.4. Use commands like 'curl -X GET http://<dolibarr-url>/api/index.php/users/{id}/groups' with different user IDs to see if unauthorized group data is returned. Ensure proper access controls are enforced.

Impact Analysis

Attackers could exploit this to access unauthorized user data, escalate privileges, or leak sensitive information. Since it crosses tenant boundaries, data from multiple organizations could be exposed. The impact depends on the exposed data but may include privacy violations or compliance breaches.

Compliance Impact

This vulnerability could lead to unauthorized data exposure, violating GDPR's data protection principles or HIPAA's privacy rules. Organizations using affected Dolibarr versions may face compliance penalties, legal liabilities, or reputational damage due to potential data leaks.

Mitigation Strategies

Upgrade Dolibarr to version 24.0.0 or later immediately. Apply the security patch from commit fd478850f823e27c672300acb4b02baeef79aef1. Restrict API access to trusted users and monitor for unauthorized access attempts.

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