Vulnerability record · CVE-2026-55652 · published 15 July 2026

CVE-2026-55652: Improper authentication vulnerability

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.

9.8 CVSS 3.1 Critical EPSS 0.62% · top 52.4% CWE-287 · Improper authenticationCWE-290 · Authentication bypass by spoofing Deferred

9.8CVSS 3.1 base score

0.62%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

4References

17 Jul 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Link	Tags
https://github.com/wekan/wekan/commit/b181889a565254bc9bf79379a34fc7f617ccda28
https://github.com/wekan/wekan/releases/tag/v9.46
https://github.com/wekan/wekan/security/advisories/GHSA-jggc-qvfc-jr6x
https://github.com/wekan/wekan/security/advisories/GHSA-jggc-qvfc-jr6x

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Source: NIST National Vulnerability Database (record CVE-2026-55652), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.