CVE-2026-55234: 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/swiml
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.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-55234
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-552340.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-55234 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for Wekan is open
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- criticalCVE-2026-55652: Wekan is open source kanban built with Meteor. Prior to 9.46, header-login with HEADER_LOGIN_T…nvd · 2026-07-15
- mediumCVE-2026-53447: Wekan is open source kanban built with Meteor. Prior to 9.35, the Wekan cloneBoard Meteor meth…nvd · 2026-07-15
- unknownCVE-2026-53446: Wekan is open source kanban built with Meteor. Prior to 9.32, Wekan webhook integration URLs i…nvd · 2026-07-15
- unknownCVE-2026-53445: Wekan is open source kanban built with Meteor. Prior to 9.32, the Wekan copyBoard Meteor DDP m…nvd · 2026-07-15
- unknownCVE-2026-53444: Wekan is open source kanban built with Meteor. Prior to 9.32, Wekan OIDC-related Meteor method…nvd · 2026-07-15
- unknownCVE-2026-52893: Wekan is open source kanban built with Meteor. Prior to 9.32, the Wekan Accounts.onCreateUser …nvd · 2026-07-15
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