CVE-2026-53444

Deferred Deferred - Pending Action

Unauthorized Organization and Team Modification in Wekan

Publication date: 2026-07-15

Last updated on: 2026-07-17

Assigner: GitHub, Inc.

Description

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-07-15

Last Modified

2026-07-17

Generated

2026-08-05

AI Q&A

2026-07-16

EPSS Evaluated

2026-08-03

NVD

CVE-2026-53444

Affected Vendors & Products

Vendor	Product	Version / Range
wekan	wekan	9.32

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-269	The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

Wekan is an open-source kanban tool built with Meteor. Prior to version 9.32, it had a vulnerability in its OIDC-related methods. These methods, found in specific files, could be called by any authenticated user without proper admin authorization checks. This allowed unauthorized users to create or modify organizations and teams, and in some cases, grant themselves global admin privileges if a specific setting was enabled.

Detection Guidance

To detect this vulnerability, check if your Wekan instance is running a version prior to 9.32. Inspect the files packages/wekan-oidc/oidc_server.js, server/models/org.js, and server/models/team.js for the presence of the vulnerable methods setCreateOrgFromOidc, setOrgAllFieldsFromOidc, setCreateTeamFromOidc, setTeamAllFieldsFromOidc, boardRoutineOnLogin, or groupRoutineOnLogin without proper admin authorization checks.

Impact Analysis

An attacker could exploit this to create unauthorized organizations or teams, modify existing ones, or even gain full admin access to the Wekan instance. This could lead to data manipulation, unauthorized access to sensitive information, or disruption of the kanban board operations.

Compliance Impact

This vulnerability could lead to unauthorized access or modification of sensitive data, violating compliance requirements under GDPR (data protection) and HIPAA (health information privacy). Unauthorized admin access may result in data breaches, improper data handling, or failure to maintain audit logs, all of which are critical for regulatory compliance.

Mitigation Strategies

Immediately upgrade Wekan to version 9.32 or later to address the vulnerability. Ensure that admin authorization checks are properly enforced for OIDC-related methods. Review and restrict access to sensitive methods to prevent unauthorized modifications to organizations, teams, and admin privileges.

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