CVE-2026-67528

Description

OpenProject is open-source, web-based project management software. Prior to 17.6.0, GET /api/v3/custom_options/:id resolved CustomOption records by global numeric id and allowed UserCustomField and GroupCustomField options without checking visible(current_user), so authenticated non-admin users could enumerate sequential custom option ids and read labels belonging to admin_only user or group custom fields. This issue is fixed in 17.6.0.

CVSS Vector

References

• https://github.com/opf/openproject/commit/a13fa079bc8040449570384c19f2d98f637179f1
• https://github.com/opf/openproject/releases/tag/v17.6.0
• https://github.com/opf/openproject/security/advisories/GHSA-wr3w-qchj-p4cm