GHSA-h8fp-f39c-q6mh
React Router: RSCErrorHandler Missing Protocol Validation (XSS)
At a glance
- Published
- Updated
- CVE
- CVE-2026-53667
- CVSS_V3
- CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N
Description
This is a follow up to https://github.com/remix-run/react-router/security/advisories/GHSA-8646-j5j9-6r62. React Router was alerted of a code path in the (unstable) RSC error handling path in which redirects from untrusted sources could still result in an XSS vector via attacker-supplied redirect targets > [!NOTE] > This only affects your application if you are using the unstable RSC APIs
Affected packages
| Package | Versions |
|---|---|
| npm · react-router | introduced 7.11.0, fixed 7.18.0 |
References
- https://github.com/remix-run/react-router/security/advisories/GHSA-h8fp-f39c-q6mh WEB
- https://github.com/remix-run/react-router/pull/15177 WEB
- https://github.com/remix-run/react-router/commit/ce596e823f0d7b883a433af1d5a839a8b9fe0242 WEB
- https://github.com/remix-run/react-router PACKAGE
- https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v7180 WEB
- https://github.com/remix-run/react-router/releases/tag/react-router@7.18.0 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |