GHSA-fv66-9v8q-g76r React Server Components are Vulnerable to RCE

• npm react-server-dom-webpack: >= 19.0.0, < 19.0.1 → fixed in 19.0.1 • npm react-server-dom-webpack: >= 19.1.0, < 19.1.2 → fixed in 19.1.2 • npm react-server-dom-webpack: >= 19.2.0, < 19.2.1 → fixed in 19.2.1 • npm react-server-dom-turbopack: >= 19.0.0, < 19.0.1 → fixed in 19.0.1 • npm react-server-dom-turbopack: >= 19.1.0, < 19.1.2 → fixed in 19.1.2 • npm react-server-dom-turbopack: >= 19.2.0, < 19.2.1 → fixed in 19.2.1 • npm react-server-dom-parcel: >= 19.0.0, < 19.0.1 → fixed in 19.0.1 • npm react-server-dom-parcel: >= 19.1.0, < 19.1.2 → fixed in 19.1.2 • npm react-server-dom-parcel: >= 19.2.0, < 19.2.1 → fixed in 19.2.1

Impact There is an unauthenticated remote code execution vulnerability in React Server Components. We recommend upgrading immediately. The vulnerability is present in versions 19.0.0, 19.1.0, 19.1.1, and 19.2.0 of: • react-server-dom-webpack • react-server-dom-parcel • react-server-dom-turbopack Patches A fix was introduced in versions 19.0.1, 19.1.2, and 19.2.1. If you are using any of the above packages please upgrade to any of the fixed versions immediately. If your app’s React code does not use a server, your app is not affected by this vulnerability. If your app does not use a framework, bundler, or bundler plugin that supports React Server Components, your app is not affected by this vulnerability. References See the blog post for more information and upgrade instructions.