Vulnerability details

CVE-2026-55652

wekan wekan

Wekan: Header-login IP allowlist bypass via X-Forwarded-For spoofing in Wekan allows unauthenticated full account takeover (incl. admin)

CVSS 3.1

9.8Critical

Official description

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.

CVSS scores

Score	Version	Source	Vector
9.8Critical	3.1	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`

Affected products

Vendor	Product	Versions	Source
wekan	wekan	< 9.46	CVEProject cvelistV5 (CNA)

References and advisories

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

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Details

Published: 2026-07-16
Last updated: 2026-07-17
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

0.62%

Probability of exploitation in 30 days

49.9%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: Yes
Exploitation: Proof of concept
Technical impact: Total

Weaknesses (CWE)

CWE-287
Improper Authentication
CWE-290
Authentication Bypass by Spoofing