React Router is a router for React. In versions 7.11.0 through 7.17.0, the RSCErrorHandler is missing protocol validation, allowing for redirects from untrusted sources. This issue is a follow up to CVE-2026-53667, and only affects consuming applications if they are using the unstable RSC APIs. This issue has been fixed in version 7.18.0.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/remix-run/react-router/commit/ce596e823f0d7b883a433af1d5a839a8b9fe0242 Patch
- https://github.com/remix-run/react-router/pull/15177 Issue Tracking, Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 6.1 · shopifyNVD modified 2026-10-24 13:10
Affected (CPE criteria) 1
cpe:2.3:a:shopify:react-router:*:*:*:*:*:node.js:*:*
References 5
- https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180 Release Notes
- https://github.com/remix-run/react-router/commit/ce596e823f0d7b883a433af1d5a839a8b9fe0242 Patch
- https://github.com/remix-run/react-router/pull/15177 Issue Tracking, Patch
- https://github.com/remix-run/react-router/releases/tag/[email protected] Release Notes
- https://github.com/remix-run/react-router/security/advisories/GHSA-h8fp-f39c-q6mh Third Party Advisory