SB2026072856 - Authentication Bypass by Spoofing in Wekan

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Main Vulnerability Database SB2026072856

SB2026072856 - Authentication Bypass by Spoofing in Wekan

Published: July 28, 2026

Security Bulletin ID SB2026072856
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Authentication Bypass by Spoofing (CVE-ID: CVE-2026-55652)

CWE-ID: CWE-290 - Authentication Bypass by Spoofing

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to take over arbitrary accounts, including administrative accounts.

The vulnerability exists due to improper access control in the header-login authentication mechanism when processing requests that supply a spoofed X-Forwarded-For header and a chosen header-login username. A remote attacker can send a specially crafted GET request to take over arbitrary accounts, including administrative accounts.

Exploitation requires the header-login feature to be enabled and the attacker to be able to reach the Wekan HTTP port directly without traversing the trusted reverse proxy.


Remediation

Install update from vendor's website.

References