Wekan up to 9.31 OIDC Server oidc_server.js GroupRoutineOnLogin improper authorization

Summaryinfo

A vulnerability labeled as critical has been found in Wekan up to 9.31. This issue affects the function GroupRoutineOnLogin of the file packages/wekan-oidc/oidc_server.js of the component OIDC Server. Executing a manipulation can lead to improper authorization. This vulnerability appears as CVE-2026-53444. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Wekan up to 9.31. It has been declared as critical. This vulnerability affects the function GroupRoutineOnLogin of the file packages/wekan-oidc/oidc_server.js of the component OIDC Server. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Wekan is open source kanban built with Meteor. Prior to 9.32, Wekan OIDC-related Meteor methods in packages/wekan-oidc/oidc_server.js, server/models/org.js, and server/models/team.js are globally callable without the admin authorization checks used by their non-OIDC counterparts. Authenticated users can call setCreateOrgFromOidc, setOrgAllFieldsFromOidc, setCreateTeamFromOidc, setTeamAllFieldsFromOidc, boardRoutineOnLogin, or groupRoutineOnLogin to create or modify organizations and teams, and groupRoutineOnLogin can grant global admin privileges when PROPAGATE_OIDC_DATA is enabled. This issue is fixed in version 9.32.

The advisory is available at github.com. This vulnerability was named CVE-2026-53444 since 06/09/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1548.002 by the MITRE ATT&CK project.

Upgrading to version 9.32 eliminates this vulnerability.

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Productinfo

Name

• Wekan

Version

• 9.0
• 9.1
• 9.2
• 9.3
• 9.4
• 9.5
• 9.6
• 9.7
• 9.8
• 9.9
• 9.10
• 9.11
• 9.12
• 9.13
• 9.14
• 9.15
• 9.16
• 9.17
• 9.18
• 9.19
• 9.20
• 9.21
• 9.22
• 9.23
• 9.24
• 9.25
• 9.26
• 9.27
• 9.28
• 9.29
• 9.30
• 9.31

Website

• Product: https://github.com/wekan/wekan/

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