Missing Authorization in Wekan - CVE-2026-53444
Published: July 28, 2026
Vulnerability identifier: #VU139862
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-53444
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: wekan.github.io
Affected software:
Wekan
Wekan
Detailed vulnerability description
The vulnerability allows a remote user to escalate privileges to global admin.
The vulnerability exists due to missing authorization in the groupRoutineOnLogin Meteor method and addGroupsWithAttributes login handling when handling caller-supplied OIDC group data and user identifiers. A remote user can call the exposed method with crafted group attributes to escalate privileges to global admin.
Exploitation requires the PROPAGATE_OIDC_DATA environment variable to be enabled.
How to mitigate CVE-2026-53444
Install security update from vendor's website.