OpenClaw < 2026.2.21 - Missing VNC Authentication in Sandbox Browser noVNC Observer
OpenClaw versions prior to 2026.2.21 sandbox browser entrypoint launches x11vnc without authentication for noVNC observer sessions, allowing unauthenticated access to the VNC interface. Remote attackers on the host loopback interface can connect to the exposed noVNC port to observe or interact with the sandbox browser …
Severity high: primary CNA CVSS 8.5 v4.0 (worst CNA-provided scenario) Not listed in this KEV snapshot. Forecast present in this snapshot.
Published 2026-03-21T00:42:29.289Z. Updated 2026-10-08T15:22:23.438Z.