CVE-2026-55234 Missing authorization in wekan
Authenticated users can move cards, lists, or swimlanes into private boards they do not belong to due to missing validation of the target board ID.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-55234?
CVE-2026-55234 is a high-severity missing authorization vulnerability in wekan, published on 15 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Which versions are affected by CVE-2026-55234?
How do I fix CVE-2026-55234?
No fix has been published for CVE-2026-55234 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-55234 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55234 exists.
Sources
Also known as GHSA-gm7v-pc38-53jr.