CVE-2026-55234: Wekan

High severity, CVSS 8.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Wekan is open source kanban built with Meteor. Prior to 9.37, Wekan DDP update allow rules in server/permissions/cards.js, server/permissions/lists.js, and server/permissions/swimlanes.js authorize against the stored source boardId and do not validate a new boardId in the update modifier. Any authenticated user with write access to their own board can call /cards/update, /lists/update, or /swimlanes/update to move cards, lists, or swimlanes into a private board they are not a member of. This issue is fixed in version 9.37.

Affected products

• Wekan Wekan: before 9.37 (fixed in 9.37)

Published 2026-07-15. Last modified 2026-07-16.