---
id: CVE-2026-59154
title: Wekan is open source kanban built with Meteor
summary: >-
  Wekan is open source kanban built with Meteor. Prior to 9.64, Wekan has a
  cross-board authorization bypass in the direct Meteor collection allow rules
  for Checklists and ChecklistItems because updates are authorized only against
  the curr…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'
cwe:
  - CWE-863
published: '2026-07-10'
updated: '2026-07-10'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-59154'
references:
  - url: >-
      https://github.com/wekan/wekan/commit/b1ca76007b9a295fd029dfefc1a2d1d6f1920835
    label: security-advisories@github.com
  - url: 'https://github.com/wekan/wekan/releases/tag/v9.64'
    label: security-advisories@github.com
  - url: 'https://github.com/wekan/wekan/security/advisories/GHSA-gv8h-5p3p-6hx7'
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00358
epssPercentile: 0.26772
ingestedAt: '2026-07-11T20:15:26.129Z'
---

## Overview

Wekan is open source kanban built with Meteor. Prior to 9.64, Wekan has a cross-board authorization bypass in the direct Meteor collection allow rules for Checklists and ChecklistItems because updates are authorized only against the current source doc.cardId and do not inspect the destination cardId or boardId in the update modifier, allowing a low-privileged authenticated user with write access to one board and knowledge of a target private card id to create checklist data on an accessible card and move it into a private board where they are not a member. This issue is fixed in version 9.64.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.