CVE-2026-44732: OpenProject authorization bypass in document update endpoint

CVE-2026-44732 · Severity: medium · CVSS 4.3 · Published 2026-06-26

OpenProject, an open-source project management platform, contains a security flaw in how it handles document updates. An authorized user can bypass intended restrictions to move or modify documents belonging to projects they do not have permission to manage. This could lead to unauthorized changes to project documentation and organizational data being moved to incorrect project folders.

Quick answers

Is CVE-2026-44732 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-44732 being exploited in the wild.
How severe is CVE-2026-44732?
Medium severity, with a CVSS score of 4.3, published 26 June 2026.
Which products and versions are affected?
opf OpenProject < 17.3.2, < 17.4.0.
Is there a fix for CVE-2026-44732?
A patch was published on 2026-06-26: Fix confirmed in versions 17.3.2 and 17.4.0 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-44732 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-44732?
Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An Insecure Direct Object Reference (IDOR) vulnerability exists in the OpenProject document update endpoint (/api/v3/documents/{id}). The root cause is an improper authorization sequence where attacker-controlled attributes are applied to a persisted record before final authorization checks are enforced. By sending a PATCH request with a modified 'project_id' parameter, an authenticated user lacking the ':manage_documents' permission can successfully move and modify documents across different projects. This allows for unauthorized modification of resources. The issue is resolved in versions 17.3.2 and 17.4.0.

Affected products

  • opf OpenProject < 17.3.2, < 17.4.0

Timeline

  • 2026-05-13: advisory: Original GitHub advisory published
  • 2026-06-26: disclosed: NVD publication date
  • 2026-06-26: patched: Fix confirmed in versions 17.3.2 and 17.4.0

References

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