CVE-2026-22030CWE-346CWE-352

React Router has CSRF issue in Action/Server Action Request Processing

Medium · published January 10, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
7.8
In the wild
Unconfirmed
What it is

React Router is a router for React. In @remix-run/server-runtime version prior to 2.17.3. and react-router 7.0.0 through 7.11.0, React Router (or Remix v2) is vulnerable to CSRF attacks on document POST requests to UI routes when using server-side route action handlers in Framework Mode, or when using React Server Actions in the new unstable RSC modes. There is no impact if Declarative Mode (<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>) is being used. This issue has been patched in @remix-run/server-runtime version 2.17.3 and react-router version 7.12.0.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00186 · 7.8th percentile
Weaknesses
CWE-346 · Origin Validation Error; CWE-352 · Cross-Site Request Forgery (CSRF)
Published
2026-01-10T02:42Z
EPSS history
Timeline
  • 10 JAN 02:42Z
    React Router has CSRF issue in Action/Server Action Request Processing
    cvelistv5