# CVE-2026-44736

## Summary

- **CVE ID:** CVE-2026-44736
- **Severity:** MEDIUM
- **CVSS Score:** 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
- **CWE:** CWE-200, CWE-639, CWE-836
- **Published:** Jun 26, 2026
- **Last Modified:** Jun 27, 2026

## Description

OpenProject is open-source, web-based project management software. Prior to 17.4.0, the GET /api/v3/relations endpoint allows any authenticated user to retrieve relations — and the subject (title) of work packages they have no permission to view — by supplying an arbitrary work package ID in the involved, fromId, or toId filter. This bypasses the Relation.visible scope due to a flawed performance optimization in RelationQuery. This vulnerability is fixed in 17.4.0.

## Affected Products

- opf — openproject (< 17.4.0)

## References

- [CNA](https://github.com/opf/openproject/security/advisories/GHSA-p9gq-hrgh-2645)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.39%
- **EPSS Percentile:** 32.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._