CVE-2026-44735: CWE-863: Incorrect Authorization in opf openproject
OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, the GET /api/v3/shares endpoint returns share details for ALL work packages in a project to any user with the view_shared_work_packages permission. The authorization check operates at the project level only — it does not verify the requesting user can actually view each individual shared work package. This allows a regular project member to discover work package IDs and subjects (including confidential titles), which users have been granted shared access, what role level was assigned (Editor, Commenter, Viewer). This vulnerability is fixed in 17.3.2 and 17.4.0.
AI Analysis
Technical Summary
OpenProject before versions 17.3.2 and 17.4.0 has an incorrect authorization vulnerability (CWE-863) in the GET /api/v3/shares API endpoint. The authorization check is performed only at the project level, not at the individual work package level, allowing users with the view_shared_work_packages permission to access details of all shared work packages in the project, including confidential information. This vulnerability is resolved in versions 17.3.2 and 17.4.0.
Potential Impact
An attacker with the view_shared_work_packages permission can access sensitive information about all shared work packages within a project, including confidential titles, work package IDs, users granted shared access, and their assigned roles. This exposure can lead to unauthorized information disclosure but does not allow modification or denial of service.
Mitigation Recommendations
This vulnerability is fixed in OpenProject versions 17.3.2 and 17.4.0. Users should upgrade to at least one of these versions to remediate the issue. No other mitigation or temporary workaround is indicated.
CVE-2026-44735: CWE-863: Incorrect Authorization in opf openproject
Description
OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, the GET /api/v3/shares endpoint returns share details for ALL work packages in a project to any user with the view_shared_work_packages permission. The authorization check operates at the project level only — it does not verify the requesting user can actually view each individual shared work package. This allows a regular project member to discover work package IDs and subjects (including confidential titles), which users have been granted shared access, what role level was assigned (Editor, Commenter, Viewer). This vulnerability is fixed in 17.3.2 and 17.4.0.
CVSS v3.1
Score 6.5medium
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
OpenProject before versions 17.3.2 and 17.4.0 has an incorrect authorization vulnerability (CWE-863) in the GET /api/v3/shares API endpoint. The authorization check is performed only at the project level, not at the individual work package level, allowing users with the view_shared_work_packages permission to access details of all shared work packages in the project, including confidential information. This vulnerability is resolved in versions 17.3.2 and 17.4.0.
Potential Impact
An attacker with the view_shared_work_packages permission can access sensitive information about all shared work packages within a project, including confidential titles, work package IDs, users granted shared access, and their assigned roles. This exposure can lead to unauthorized information disclosure but does not allow modification or denial of service.
Mitigation Recommendations
This vulnerability is fixed in OpenProject versions 17.3.2 and 17.4.0. Users should upgrade to at least one of these versions to remediate the issue. No other mitigation or temporary workaround is indicated.
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: 6a3edc0372d29f1837f464a7
Added to database: 06/26/2026, 20:07:31 UTC
Last enriched: 07/03/2026, 22:23:33 UTC
Last updated: 08/10/2026, 12:41:11 UTC
Views: 94
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