react-router: @remix-run/react: React Router SSR XSS in ScrollRestoration

A cross site scripting flaw has been discovered in the npm react-router package. The cross site scripting 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 execution during...

Cross-site Scripting (XSS)

React Router is vulnerable to Cross-Site Scripting XSS. The vulnerability is due to improper handling of untrusted input in the API during server-side rendering when generating keys via the getKey or storageKey props, which allows an attacker to inject and execute arbitrary JavaScript...

CVE-2026-21884

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 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 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...

GHSA-8V8X-CX79-35W7 React Router SSR XSS in ScrollRestoration

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 execution during SSR if untrusted content is used to generate the keys. !NOTE This does not impact applications if...