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TI-2026-17724 Aliases CVE-2026-22030GHSA-h5cw-625j-3rxh

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

Priority LOW 28CWE-346Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Security bypass, Tampering
Confidentiality · integrity · availability
None · High · None
Fix status
Partial Red Hat: 4 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-346 and CWE-352.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00186 8th percentileScored 2026-11-07
Fix Partial react-router (npm): 7.12.0@remix-run/server-runtime (npm): 2.17.3Red Hat: 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
remix-runreact-router@remix-run/router < 2.17.3; react-router >= 7.0.0, < 7.12.0—No fix listedCNA
—react-router (npm)7.0.0 to before 7.12.07.12.0Patch availableGHSA-h5cw-625j-3rxh
—@remix-run/server-runtime (npm)before 2.17.32.17.3Patch availableGHSA-h5cw-625j-3rxh
  • react-router Vendorremix-run Affected @remix-run/router < 2.17.3; react-router >= 7.0.0, < 7.12.0 Fixed in — No fix listed CNA
  • react-router (npm) Vendor— Affected 7.0.0 to before 7.12.0 Fixed in 7.12.0 Patch available GHSA-h5cw-625j-3rxh
  • @remix-run/server-runtime (npm) Vendor— Affected before 2.17.3 Fixed in 2.17.3 Patch available GHSA-h5cw-625j-3rxh

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:shopify:react-router:*:*:*:*:*:node.js:*:*7.0.0 – 7.11.0Vulnerableremix-run
cpe:2.3:a:shopify:remix-run\/react:*:*:*:*:*:node.js:*:*before 2.17.3Vulnerableremix-run
  • cpe:2.3:a:shopify:react-router:*:*:*:*:*:node.js:*:* Versions 7.0.0 – 7.11.0 Vulnerable ·remix-run
  • cpe:2.3:a:shopify:remix-run\/react:*:*:*:*:*:node.js:*:* Versions before 2.17.3 Vulnerable ·remix-run

Remediation

  • Fix · GHSA-h5cw-625j-3rxh react-router (npm) Fixed in 7.12.0 Advisory →
  • Fix · GHSA-h5cw-625j-3rxh @remix-run/server-runtime (npm) Fixed in 2.17.3 Advisory →

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Ansible Automation Platform 2AffectedNo fix yet: Fix deferred
Red Hat Build of KueueAffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)AffectedNo fix yet: Fix deferred

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-22030
  2. 2026-10-03 Alias added: GHSA-h5cw-625j-3rxh

References

  • TI-2026-40200 React Router: Unauthenticated Denial of Service via Inefficient Route Matching CVSS 4.0HIGH 8.7
  • TI-2026-30645 React Router vulnerable to DoS via unbounded path expansion in __manifest endpoint CVSS 3.1HIGH 7.5
  • TI-2026-26400 React Router vulnerable to Denial of Service via reflected user input in single-fetch CVSS 3.1HIGH 7.5
  • TI-2026-17723 React Router vulnerable to XSS via Open Redirects CVSS 3.1HIGH 8.0
  • TI-2026-17585 React Router SSR XSS in ScrollRestoration CVSS 3.1HIGH 8.2
  • TI-2026-30532 Deserialization of untrusted data in remix-run react-router CVSS 3.1HIGH 8.1
See all 15 →

Sources