CVE-2026-44732: Opf Openproject

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, OpenProject exposes a document update endpoint used to modify existing documents. The target document is loaded with visibility checks and then updated. During update, attacker-controlled attributes are applied to the persisted record before authorization is enforced. As a result, a user without :manage_documents in the source project can move and modify foreign project documents by setting project_id in a single PATCH request. This vulnerability is fixed in 17.3.2 and 17.4.0.

Affected products

• Opf Openproject: before 17.3.2 (fixed in 17.3.2)

Published 2026-06-26. Last modified 2026-06-29.