جزئیات آسیب‌پذیری

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.

• https://github.com/remix-run/react-router/security/advisories/GHSA-8v8x-cx79-35w7 x_refsource_CONFIRM
• https://access.redhat.com/security/cve/CVE-2026-21884 vdb-entryx_refsource_REDHAT
• https://bugzilla.redhat.com/show_bug.cgi?id=2428421 issue-trackingx_refsource_REDHAT
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-21884.json x_sadp-csaf-vex
• https://access.redhat.com/errata/RHSA-2026:3958 vendor-advisoryx_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2026:3960 vendor-advisoryx_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2026:3782 vendor-advisoryx_refsource_REDHAT
• https://access.redhat.com/errata/RHSA-2026:19712 vendor-advisoryx_refsource_REDHAT