CVE-2026-44732: CWE-639: Authorization Bypass Through User-Controlled Key in opf openproject
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.
AI Analysis
Technical Summary
CVE-2026-44732 is an authorization bypass vulnerability (CWE-639) in OpenProject's document update endpoint. The endpoint loads the target document with visibility checks but applies attacker-controlled attributes to the record before enforcing authorization. This sequence allows an attacker with limited privileges to change the project_id attribute and thereby move and modify documents from foreign projects without proper permissions. The issue affects versions prior to 17.3.2 and 17.4.0 and has been addressed in these fixed releases.
Potential Impact
An attacker with limited privileges can modify documents in projects they do not have management rights for, potentially leading to unauthorized changes in project documents. The vulnerability does not impact confidentiality or availability but allows integrity violations by unauthorized document modifications.
Mitigation Recommendations
Upgrade OpenProject to version 17.3.2 or 17.4.0 or later, where this vulnerability is fixed. No other mitigation or temporary workaround is documented. Patch status is not explicitly stated but the vendor has released fixed versions, so applying these updates is the recommended remediation.
CVE-2026-44732: CWE-639: Authorization Bypass Through User-Controlled Key in opf openproject
Description
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.
CVSS v3.1
Score 4.3medium
Affected software
pkg:github/opf/openprojectRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-44732 is an authorization bypass vulnerability (CWE-639) in OpenProject's document update endpoint. The endpoint loads the target document with visibility checks but applies attacker-controlled attributes to the record before enforcing authorization. This sequence allows an attacker with limited privileges to change the project_id attribute and thereby move and modify documents from foreign projects without proper permissions. The issue affects versions prior to 17.3.2 and 17.4.0 and has been addressed in these fixed releases.
Potential Impact
An attacker with limited privileges can modify documents in projects they do not have management rights for, potentially leading to unauthorized changes in project documents. The vulnerability does not impact confidentiality or availability but allows integrity violations by unauthorized document modifications.
Mitigation Recommendations
Upgrade OpenProject to version 17.3.2 or 17.4.0 or later, where this vulnerability is fixed. No other mitigation or temporary workaround is documented. Patch status is not explicitly stated but the vendor has released fixed versions, so applying these updates is the recommended remediation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-07T18:04:17.309Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3edc0372d29f1837f4649e
Added to database: 06/26/2026, 20:07:31 UTC
Last enriched: 06/26/2026, 20:12:51 UTC
Last updated: 06/26/2026, 20:36:47 UTC
Views: 5
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