PT-2026-5149

Name of the Vulnerable Software and Affected Versions OpenProject versions prior to 16.6.6 OpenProject versions prior to 17.0.2 Description OpenProject is a web-based project management software. A file write issue exists in the repository diff download endpoint /projects/:project...

OpenProject command injection vulnerability

OpenProject is an open-source web-based project management software. Versions of OpenProject prior to 16.6.6 and 17.0.2 had a command injection vulnerability. This vulnerability stemmed from arbitrary file writing at the repository differential download endpoint, which could lead to data loss and...

CVE-2026-23721

OpenProject is an open-source, web-based project management software. When using groups in OpenProject to manage users, the group members should only be visible to users that have the View Members permission in any project that the group is also a member of. Prior to versions 17.0.1 and 16.6.5, d...

CVE-2026-23646

OpenProject is an open-source, web-based project management software. Users of OpenProject versions prior to 16.6.5 and 17.0.1 have the ability to view and end their active sessions via Account Settings → Sessions. When deleting a session, it was not properly checked if the session belongs to the...

CVE-2026-23625

OpenProject is an open-source, web-based project management software. Versions 16.3.0 through 16.6.4 are affected by a stored cross-site scripting vulnerability in the Roadmap view. OpenProject’s roadmap view renders the “Related work packages” list for each version. When a version contains work...

CVE-2026-23625

OpenProject is an open-source, web-based project management software. Versions 16.3.0 through 16.6.4 are affected by a stored cross-site scripting vulnerability in the Roadmap view. OpenProject’s roadmap view renders the “Related work packages” list for each version. When a version contains work...

CVE-2026-23646

OpenProject is an open-source, web-based project management software. Users of OpenProject versions prior to 16.6.5 and 17.0.1 have the ability to view and end their active sessions via Account Settings → Sessions. When deleting a session, it was not properly checked if the session belongs to the...

CVE-2026-23721

OpenProject is an open-source, web-based project management software. When using groups in OpenProject to manage users, the group members should only be visible to users that have the View Members permission in any project that the group is also a member of. Prior to versions 17.0.1 and 16.6.5, d...

CVE-2026-23721 OpenProject users with "View Members" permission in any project can view all Group memberships

OpenProject is an open-source, web-based project management software. When using groups in OpenProject to manage users, the group members should only be visible to users that have the View Members permission in any project that the group is also a member of. Prior to versions 17.0.1 and 16.6.5, d...

CVE-2026-23721

OpenProject is an open-source, web-based project management software. When using groups in OpenProject to manage users, the group members should only be visible to users that have the View Members permission in any project that the group is also a member of. Prior to versions 17.0.1 and 16.6.5, d...

CVE-2026-23721

OpenProject suffers a permission-check flaw: if a user has the View Members permission in any project, they could enumerate all groups and see which users are in each group. This affects OpenProject versions prior to 17.0.1 and 16.6.5. The issue has been fixed in OpenProject 17.0.1 and 16.6.5. No...

EUVD-2026-3307

OpenProject is an open-source, web-based project management software. When using groups in OpenProject to manage users, the group members should only be visible to users that have the View Members permission in any project that the group is also a member of. Prior to versions 17.0.1 and 16.6.5, d...

CVE-2026-23721 OpenProject users with "View Members" permission in any project can view all Group memberships

OpenProject is an open-source, web-based project management software. When using groups in OpenProject to manage users, the group members should only be visible to users that have the View Members permission in any project that the group is also a member of. Prior to versions 17.0.1 and 16.6.5, d...

CVE-2026-23721 OpenProject users with "View Members" permission in any project can view all Group memberships

OpenProject is an open-source, web-based project management software. When using groups in OpenProject to manage users, the group members should only be visible to users that have the View Members permission in any project that the group is also a member of. Prior to versions 17.0.1 and 16.6.5, d...

CVE-2026-23646 OpenProject users can delete other user's session, causing them to be logged out

OpenProject is an open-source, web-based project management software. Users of OpenProject versions prior to 16.6.5 and 17.0.1 have the ability to view and end their active sessions via Account Settings → Sessions. When deleting a session, it was not properly checked if the session belongs to the...

CVE-2026-23646

OpenProject is an open-source, web-based project management software. Users of OpenProject versions prior to 16.6.5 and 17.0.1 have the ability to view and end their active sessions via Account Settings → Sessions. When deleting a session, it was not properly checked if the session belongs to the...

CVE-2026-23646 OpenProject users can delete other user's session, causing them to be logged out

OpenProject is an open-source, web-based project management software. Users of OpenProject versions prior to 16.6.5 and 17.0.1 have the ability to view and end their active sessions via Account Settings → Sessions. When deleting a session, it was not properly checked if the session belongs to the...

CVE-2026-23646 OpenProject users can delete other user's session, causing them to be logged out

OpenProject is an open-source, web-based project management software. Users of OpenProject versions prior to 16.6.5 and 17.0.1 have the ability to view and end their active sessions via Account Settings → Sessions. When deleting a session, it was not properly checked if the session belongs to the...

CVE-2026-23646

OpenProject versions before 16.6.5 and 17.0.1 are affected. The vulnerability arises in session management: when a user deletes a session via DELETE /my/sessions/:id, the system did not verify that the session actually belonged to the requesting user. Because session IDs are incremental integers,...

EUVD-2026-3308

OpenProject is an open-source, web-based project management software. Users of OpenProject versions prior to 16.6.5 and 17.0.1 have the ability to view and end their active sessions via Account Settings → Sessions. When deleting a session, it was not properly checked if the session belongs to the...