CVE-2026-53668: React Router: Open redirect can lead to XSS

Severity: medium (CVSS 6.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-27 · updated 2026-10-24
Weakness: CWE-79

Description

React Router is a router for React. In versions 6.30.2 through 6.30.4 and 7.9.6 through 7.12.0, applications that allow open redirects are vulnerable to XSS. An attacker could craft a malicious link that redirects users to an unexpected external site or that exploits an XSS vector.This issue has been fixed in version 7.13.0.

Affected products

remix-run react-router: from 6.30.2 through 6.30.4; from 7.9.6 before 7.13.0 — fixed in 7.13.0

How to fix

Upgrade to a fixed version: remix-run react-router 7.13.0. Check the vendor advisory for mitigations.

References

https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180
https://github.com/remix-run/react-router/commit/3a5b5ad0e5cf9918c646509563f5c41a89226ff3
https://github.com/remix-run/react-router/pull/14718
https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0
https://github.com/remix-run/react-router/security/advisories/GHSA-jjmj-jmhj-qwj2

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