CVE-2026-55234 wekan CVE debrief

Who should care

Users of Wekan, especially those with write access to boards, should be aware of this vulnerability and ensure they are running version 9.37 or later to prevent unauthorized access to private boards. Wekan administrators and security teams should review the vulnerability and implement necessary mitigations.

Technical summary

The vulnerability exists in the DDP (Distributed Data Protocol) update rules in server/permissions/cards.js, server/permissions/lists.js, and server/permissions/swimlanes.js. These rules authorize updates based on the stored source boardId without validating the new boardId in the update modifier. This allows an authenticated user with write access to their own board to call /cards/update, /lists/update, or /swimlanes/update and move items into a private board they are not a member of. The issue is fixed in Wekan version 9.37.

Defensive priority

High

Recommended defensive actions

• Upgrade to Wekan version 9.37 or later
• Restrict write access to boards for users who should not have it
• Monitor board updates for suspicious activity
• Implement additional access controls to prevent unauthorized board access
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented

Evidence notes

The CVE record was published on 2026-07-15T22:17:25.880Z and last modified on 2026-07-16T16:19:13.690Z. The NVD entry is currently Deferred. There is limited information available about the vulnerability, and defenders should verify the affected scope and severity with the vendor. The issue is fixed in Wekan version 9.37.

Official resources