HighGHSA-8646-j5j9-6r62CVE-2026-33245

React Router vulnerable to XSS in unstable RSC redirect handling via javascript: redirect targets

Published 3 Jun 2026 · Updated 3 Jun 2026

Affected package

react-routernpm
Affected
>=7.7.0 <7.13.2
Fixed in
7.13.2
Update to the fixed version for your release line, for example:npm install react-router@7.13.2

Details

When using React Router v7's unstable RSC APIs, there exists a potential client-side XSS issue in the RSC redirect handling if redirects are coming from untrusted sources

> [!NOTE] > This only impacts your application if you are using the unstable RSC APIs in React Router.

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References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.