Wekan up to 9.45 Header-Login headerLoginAuth.js getRequestIp HEADER_LOGIN_ID improper authentication

Summaryinfo

A vulnerability was found in Wekan up to 9.45 and classified as critical. Affected by this issue is the function getRequestIp of the file server/lib/headerLoginAuth.js of the component Header-Login. The manipulation of the argument HEADER_LOGIN_ID results in improper authentication. This vulnerability is identified as CVE-2026-55652. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Wekan up to 9.45. It has been classified as critical. Affected is the function getRequestIp of the file server/lib/headerLoginAuth.js of the component Header-Login. The manipulation of the argument HEADER_LOGIN_ID with an unknown input leads to a improper authentication vulnerability. CWE is classifying the issue as CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Wekan is open source kanban built with Meteor. Prior to 9.46, header-login with HEADER_LOGIN_TRUSTED_IPS uses getRequestIp() in server/lib/headerLoginAuth.js to trust the client-supplied X-Forwarded-For header before the real socket address, allowing an unauthenticated attacker to send HEADER_LOGIN_ID for any username and receive a meteor_login_token session, including for admin. This issue is fixed in version 9.46.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-55652 since 06/17/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

Upgrading to version 9.46 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
• 9.32
• 9.33
• 9.34
• 9.35
• 9.36
• 9.37
• 9.38
• 9.39
• 9.40
• 9.41
• 9.42
• 9.43
• 9.44
• 9.45

Website

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

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