CVE-2026-21884 React Router SSR XSS in ScrollRestoration

React Router is a router for React. In @remix-run/react version prior to 2.17.3. and react-router 7.0.0 through 7.11.0, a XSS vulnerability exists in in React Router's API in Framework Mode when using the getKey/storageKey props during Server-Side Rendering which could allow arbitrary JavaScript...

CVE-2026-21884: Improper Neutralization of Input During Web Page Generation

React Router is a router for React. In @remix-run/react version prior to 2.17.3. and react-router 7.0.0 through 7.11.0, a XSS vulnerability exists in in React Router's API in Framework Mode when using the getKey/storageKey props during Server-Side Rendering which could allow arbitrary JavaScript...