Vitest Browser: Exposed Browser Mode API Can Proxy CDP and Overwrite Config Files, Leading to RCE

Summary Vitest Browser Mode exposes a cdp API that forwards raw Chrome DevTools Protocol CDP methods over the Vitest browser WebSocket RPC. CDP is not gated by browser.api.allowWrite, browser.api.allowExec, api.allowWrite, or api.allowExec. As a result, disabling Browser Mode write and exec...