CVE-2026-55234 | Wekan is open source kanban built with Meteor. Prior to 9.37… | CVSS 8.5 HIGH

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.

Metadata

CVE ID: CVE-2026-55234
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-16 16:44 UTC
Published: 2026-07-15 21:13 UTC
Last updated: 2026-07-16 15:12 UTC
Primary CWE: CWE-284
CWE-284: Improper Access Control
Vendor / Product: wekan / wekan
Sources: cve.org · NVD

Severity & Metrics

8.5 HIGH CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: no
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
wekan	wekan	—	< 9.37

Weakness (CWE)

CWE	Source	Description
CWE-284	cna	CWE-284: Improper Access Control
CWE-639	cna	CWE-639: Authorization Bypass Through User-Controlled Key

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.5	HIGH	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L

References (3)

https://github.com/wekan/wekan/security/advisories/GHSA-gm7v-pc38-53jr https://github.com/wekan/wekan/security/advisories/GHSA-gm7v-pc38-53jr
https://github.com/wekan/wekan/commit/d369a3614a4737c29d48a6345a790edf2506ddae https://github.com/wekan/wekan/commit/d369a3614a4737c29d48a6345a790edf2506ddae
https://github.com/wekan/wekan/releases/tag/v9.37 https://github.com/wekan/wekan/releases/tag/v9.37