CVE-2026-21884
Description
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 <ScrollRestoration> 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. There is no impact if server-side rendering in Framework Mode is disabled, or if Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>) is being used. This issue has been patched in @remix-run/react version 2.17.3 and react-router version 7.12.0.
Shopify React-routerHow to fix
- shopify remix-run\/react2.17.3 or later
- react-router7.12.0 or later
- @remix-run/react2.17.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| shopify react-router | 7.0.0 ≤ v ≤ 7.11.0 | — |
| shopify remix-run\/react | v < 2.17.3 | 2.17.3 |
| react-routernpm | 7.0.0 ≤ v < 7.12.0 | 7.12.0 |
| @remix-run/reactnpm | v < 2.17.3 | 2.17.3 |
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Attack Surface Management
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