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Add Origin header validation to CDP proxy WebSocket server #2668

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Add Origin header validation to CDP proxy WebSocket server #2668

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f665013
Add Origin header validation to CDP proxy WebSocket server
lucygramley May 26, 2026
0c461d4
Merge branch 'master' into fix/cdp-proxy-origin-validation
lucygramley May 27, 2026
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8 changes: 8 additions & 0 deletions src/cdp-proxy/reactNativeCDPProxy.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -97,6 +97,14 @@ export class ReactNativeCDPProxy {
Connection,
IncomingMessage,
]): Promise<void> {
// Only allow connections without an Origin header (i.e., from vscode-js-debug's
// raw WebSocket client). Browser-initiated WebSocket connections always include
// an Origin header and should be rejected.
if (request.headers.origin) {
debuggerTarget.close();
return;
}

this.debuggerTarget = debuggerTarget;

this.debuggerTarget.pause(); // don't listen for events until the target is ready
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