CVE-2026-3690: Openclaw

High severity, CVSS 7.4. EPSS: 0.6% chance of exploitation in the next 30 days.

OpenClaw Canvas Authentication Bypass Vulnerability. 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. Was ZDI-CAN-29311.

Affected products

• Openclaw Openclaw: before 2026.2.19 (fixed in 2026.2.19)

Published 2026-04-11. Last modified 2026-06-17.