CVE-2026-67527

OpenProject is open-source, web-based project management software. Prior to 17.6.0, PATCH /api/v3/work_packages/{id} accepted _links.fileLinks and allowed authenticated users with edit_work_packages but without manage_file_links to resolve Storages::FileLink records by raw id, detach or hard-delete existing FileLinks, and re-parent FileLinks from other projects to an attacker-controlled work package, exposing origin filename, origin id, and MIME type metadata. This issue is fixed in 17.6.0.

CVSS 3.1

7.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

EPSS

0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-25)

CWE

CWE-862

Published

2026-07-30

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

References

• https://github.com/opf/openproject/commit/db480bdeb8802e3d33e4448bb4e4b56a01de2e1f
• https://github.com/opf/openproject/pull/23815
• https://github.com/opf/openproject/releases/tag/v17.6.0
• https://github.com/opf/openproject/security/advisories/GHSA-c6rc-4288-8p4f

Check your stackJSON