GitHub Advisoryadvisory · npm
GHSA-qwww-vcr4-c8h2 React Router: RSC Mode CSRF Bypass Allows Action Execution Before 400 Response
HIGH
Official page ↗
- Ecosystem
- npm
- Packages
- react-router
- Severity
- High
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
- Weaknesses
- CWE-352
- Reviewed
- 2026-07-24
Affected packages
• npm react-router: >= 7.12.0, < 7.18.2 → fixed in 7.18.2
• npm react-router: >= 8.0.0, < 8.3.0 → fixed in 8.3.0
Description
This is a follow up to CVE-2026-22030 to address related CSRF flows in unstable RSC code paths.
> [!NOTE]
> This only affects your application if you are using the unstable RSC APIs
Related
Weakness · CWE (1)
- CWE-352 Cross-Site Request Forgery weakness
References
- https://github.com/remix-run/react-router/security/advisories/GHSA-qwww-vcr4-c8h2 web
- https://github.com/remix-run/react-router/pull/15353 web
- https://github.com/remix-run/react-router/commit/7a71c728ad116bd78699a258b2014ce9585729f5 web
- https://github.com/remix-run/react-router/commit/8ebd5df9932854547963e3255c8454e62430e05d web
- https://github.com/remix-run/react-router package
- https://github.com/remix-run/react-router/blob/main/CHANGELOG.md#v830 web
- https://github.com/remix-run/react-router/blob/v7/CHANGELOG.md#v7182 web
- https://github.com/remix-run/react-router/releases/tag/react-router%407.18.2 web
- https://github.com/remix-run/react-router/releases/tag/[email protected] web
- http://github.com/remix-run/react-router/pull/15311 web