CVE-2026-67527: high-severity vulnerability in opf openproject
OpenProject: Improper Access Control through /api/v3/work_packages/<X.id> via PATCH parameter "fileLinks"
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.6epss 0.4%
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/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Affected products
opf · openprojectRelated CVEs — opf openproject
In the same product, most dangerous first.
CVE-2023-33960HIGHOpenProject vulnerable to project identifier information leakage through robots.txtEPSS 1.3%CVE-2021-43830HIGHSQL injection in OpenProjectEPSS 1.0%CVE-2021-32763MEDIUMRegular Expression Denial of Service in OpenProject forum messagesEPSS 0.9%CVE-2023-31140MEDIUMOpenProject user sessions not terminated after activation of 2FAEPSS 0.9%CVE-2026-25763CRITICALCommand Injection on OpenProject repositories leads to Remote Code ExecutionEPSS 0.5%CVE-2026-46386CRITICALOpenProject: Pre-authentication RCE in openproject/openproject Docker image via default `SECRET_KEY_BASE=OVERWRITE_ME` and `cookies_serializer = :marshal`EPSS 0.5%