Vulnerability 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 Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/opf/openproject/commit/a13fa079bc8040449570384c19f2d98f637179
- https://github.com/opf/openproject/releases/tag/v17.6.0
- https://github.com/opf/openproject/security/advisories/GHSA-wr3w-qchj-p4cm
FAQ
What is CVE-2026-67528?
CVE-2026-67528 is a vulnerability with a CVSS score of 4.3 (MEDIUM). 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 Gr...
How severe is CVE-2026-67528?
CVE-2026-67528 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-67528?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.