CVE-2026-22030
React Router has CSRF issue in Action/Server Action Request Processing
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
React Router has CSRF issue in Action/Server Action Request Processing
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.
- Record
CVE-2026-22030- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - Weakness
- CWE-346, CWE-352
- Updated
- 2026-11-02
EUVDEUVD-2026-1464
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.
- Record
EUVD-2026-1464- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-h5cw-625j-3rxh
React Router has CSRF issue in Action/Server Action Request Processing
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.
[!NOTE] This does not impact your application if you are using Declarative Mode (
<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>).
- Record
GHSA-h5cw-625j-3rxh- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - Weakness
- CWE-346, CWE-352
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-22030- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - Weakness
- CWE-346, CWE-352
- Updated
- 2026-11-02
OSV
React Router has CSRF issue in Action/Server Action Request Processing
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.
- Record
CVE-2026-22030- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - Weakness
- CWE-346, CWE-352
- Updated
- 2026-11-02
OSVGHSA-h5cw-625j-3rxh
React Router has CSRF issue in Action/Server Action Request Processing
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.
[!NOTE] This does not impact your application if you are using Declarative Mode (
<BrowserRouter>) or Data Mode (createBrowserRouter/<RouterProvider>).
- Record
GHSA-h5cw-625j-3rxh- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N - Weakness
- CWE-346, CWE-352
- Updated
- 2026-11-02
OSVCLSA-2026-1792161539 No score
TuxCare security update for @remix-run/server-runtime (4 CVEs)
TuxCare rebuilt @remix-run/server-runtime to address 4 CVEs. Fixed in 2.17.0-tuxcare.1.
- Record
CLSA-2026-1792161539- Updated
- 2026-11-02
OSVCLSA-2026-1792161542 No score
TuxCare security update for @remix-run/server-runtime (3 CVEs)
TuxCare rebuilt @remix-run/server-runtime to address 3 CVEs. Fixed in 1.19.3-tuxcare.4.
- Record
CLSA-2026-1792161542- Updated
- 2026-11-02
OSVROOT-APP-NPM-CVE-2026-22030 No score
CVE-2026-22030 in @rootio/react-router - Patched by Root
Root has patched CVE-2026-22030 in the @rootio/react-router package for Root:npm. Multiple fixed versions available.
- Record
ROOT-APP-NPM-CVE-2026-22030- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
react-routernpm |
7.0.0 to 7.11.0 | 7.12.0 |
@remix-run/server-runtimenpm |
through 2.17.2 | 2.17.3 |
@remix-run/server-runtimeTuxCare:npm From an advisory covering 4 CVEs |
2.17.0-tuxcare.0 up to 2.17.0-tuxcare.1, plus listed versions 2.17.0 |
2.17.0-tuxcare.1 |
@remix-run/server-runtimeTuxCare:npm From an advisory covering 3 CVEs |
1.19.3-tuxcare.0 up to 1.19.3-tuxcare.4, plus listed versions 1.19.31.19.3-tuxcare.11.19.3-tuxcare.21.19.3-tuxcare.3 |
1.19.3-tuxcare.4 |
react-routernpm |
7.0.0 up to 7.12.0 | 7.12.0 |
@remix-run/server-runtimenpm |
before 2.17.3 | 2.17.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected | ||
| affected, aliases | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-22030 is a medium vulnerability (CVSS 6.5) in @tanstack React-router, published January 8, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 8th percentile. Fixed in react-router 7.12.0.