OpenClaw Windows Node through 2026.9.4 contains a server-side request forgery vulnerability in the canvas.present capability that bypasses URL risk evaluation enforced by canvas.navigate. Attackers with gateway or agent access can issue canvas.present to make the nodes WebView send requests to localhost, private networks, or tailnet services from the users machine.
Weakness
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
Related Attack Patterns
References
- https://github.com/openclaw/openclaw-windows-node/blob/v0.6.12/src/OpenClaw.Tray.WinUI/Windows/CanvasWindow.xaml.cs#L77-L109
- https://github.com/openclaw/openclaw-windows-node/blob/v2026.9.4/src/OpenClaw.Tray.WinUI/Services/NodeService.cs#L1244-L1270
- https://github.com/openclaw/openclaw-windows-node/commit/16528aadaa45d7bc6718b07ccf8b01f3eb033ad1
- https://github.com/openclaw/openclaw-windows-node/security/advisories/GHSA-7vch-pmw9-3g4q
- https://www.vulncheck.com/advisories/openclaw-windows-node-through-2026.9.4-ssrf-via-canvas-present
- https://github.com/openclaw/openclaw-windows-node/security/advisories/GHSA-7vch-pmw9-3g4q