CVE-2026-33245

React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components (RSC) APIs, there is a potential client-side Cross-Site Scripting (XSS) vulnerability in the RSC redirect handling if redirects come from untrusted sources. This does not impact applications that are not using the unstable RSC APIs in React Router. This is patched in version 7.13.2.

Score

CVSS 3.1 8.0 High

Status

Analyzed - security-advisories@github.com

Published

2026-06-02

Last modified

2026-06-03

Weaknesses

CWE-79

Affected products

• React-router (Remix-run)
• React-router (Shopify)

References

• https://github.com/remix-run/react-router/security/advisories/GHSA-8646-j5j9-6r62