CVE-2026-2206 WeKan Administrative Repair fixDuplicateLists.js FixDuplicateBleed access control

What is CVE-2026-2206?

CVE-2026-2206 is a medium-severity vulnerability in WeKan, published on 8 Feb 2026.

Official description

A security flaw has been discovered in WeKan up to 8.20. This vulnerability affects unknown code of the file server/methods/fixDuplicateLists.js of the component Administrative Repair Handler. Performing a manipulation results in improper access controls. It is possible to initiate the attack remotely. Upgrading to version 8.21 is able to resolve this issue. The patch is named 4ce181d17249778094f73d21515f7f863f554743. It is advisable to upgrade the affected component.

Weakness: CWE-284, CWE-266

Which versions are affected by CVE-2026-2206?

It affects 1 product.

Products include Wekan Project Wekan.

How do I fix CVE-2026-2206?

No fix has been published for CVE-2026-2206 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-2206 being exploited?

There is no known exploitation of CVE-2026-2206 in the wild and no public exploit code.

Other vulnerabilities in WeKan

• CVE-2026-30843 Wekan has Cross-Board IDOR in Custom Fields Update Endpoints Critical 9.3
• CVE-2026-30844 Wekan Vulnerable to SSRF through Lack of Validation or Filtering in Attachment URL Loading Critical 9.3
• CVE-2026-30847 Wekan Credential Leak via notificationUsers Publication Exposes Password Hashes and Session Tokens Critical 9.3
• CVE-2025-65780 Missing authorization in n/a High 8.8
• CVE-2026-30846 Wekan Exposes All Global Webhook Integrations through globalwebhooks Publication High 8.7

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-97mf-v96f-5jp7.