CVE-2026-53667
MEDIUM
NVD
CVSS Score
6.9
Severity
MEDIUM
Published
Jul 27, 2026
Vendor
unknown
Description
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.
References
- https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180
- https://github.com/remix-run/react-router/commit/ce596e823f0d7b883a433af1d5a839a8b9fe0242
- https://github.com/remix-run/react-router/pull/15177
- https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0
- https://github.com/remix-run/react-router/security/advisories/GHSA-h8fp-f39c-q6mh