ZDI-CAN-29311: ZDI-26-228: OpenClaw Canvas Authentication Bypass Vulnerability
Published Mar 30, 2026
·Updated
This vulnerability allows remote attackers to bypass authentication on affected installations of OpenClaw. Authentication is not required to exploit this vulnerability. The specific flaw exists within the implementation of the the authentication function for canvas endpoints. The issue results from improper implementation of authentication. An attacker can leverage this vulnerability to bypass authentication on the system.
Other sources
This vulnerability allows remote attackers to bypass authentication on affected installations of OpenClaw. Authentication is not required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 7.4. The following CVEs are assigned: CVE-2026-3690.
— ZDI
Affected Software
2 affected components
OpenClaw OpenClaw Canvas
OpenClaw OpenClaw
Event History
Mar 30, 2026
Advisory Published
via ZDI·05:00 AM
Data Sourced
via ZDI·05:00 AM
Description
Apr 11, 2026
Advisory Published
via ZDI·01:00 AM
Data Sourced
via ZDI·01:00 AM
SeverityAffected Software