En bref
- CVE-2026-21884 est une vulnérabilité ÉLEVÉE (CVSS 8.2) touchant react-router (shopify), remix-run/react (shopify), @remix-run/react.
- Probabilité d'exploitation dans les 30 prochains jours (EPSS) : 0.53%, plus élevée que 44.9% des vulnérabilités.
- Correctif : mettre à jour vers 2.17.3, 7.12.0 ou plus récent.
Description
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.
[!NOTE]
This does not impact applications if developers have disabled server-side rendering in Framework Mode, or if they are using Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>).
NVD 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.
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