CVE-2026-54753: `nx graph` dev server permissive CORS policy

The local HTTP server started by nx graph sent Access-Control-Allow-Origin: * on every response, letting any website a developer visited read the server’s responses cross-origin — including the full project graph and the output of the /help endpoint, which runs a target’s configured help command. The practical impact is typically cross-origin information disclosure, but can be arbitrary command injection in rare cases.