OpenProject data falsification vulnerability

OpenProject is an open-source web-based project management software. In versions 17.0.0 to 17.0.2 of OpenProject, there was a data manipulation vulnerability. This vulnerability stemmed from the fact that the synchronization server did not correctly verify the backend URL, which could lead to the...

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...

PT-2026-5179

Name of the Vulnerable Software and Affected Versions OpenProject versions 17.0.0 through 17.0.1 Description OpenProject is a web-based project management software. A synchronization server was introduced in version 17.0.0 to enable real-time collaboration on documents. The server does not proper...

PT-2026-5180

Name of the Vulnerable Software and Affected Versions OpenProject versions 17.0.0 through 17.0.1 Description OpenProject is a web-based project management software. A flaw exists in the BlockNote editor extension introduced in version 17.0.0, which allows mentioning OpenProject work packages with...

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-2026-23721

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-2026-23721 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...

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 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...

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-2026-23646

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...

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...

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...