CVE-2025-11953 - Metro4Shell RCE in React Native Metro Server
A critical unauthenticated remote code execution (RCE) vulnerability has been identified in the React Native Metro development server, with nearly 3,500 exposed instances currently reachable on the public internet. Tracked as CVE-2025-11953, also known as Metro4Shell, this flaw affects the Metro server used during React Native application build and testing workflows.