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Fencer Vulns
medium 6.5

CVE-2026-22030 json

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

published 2026-01-08 10 mo ago modified 2026-09-10 1 mo ago also EUVD-2026-1464 , GHSA-h5cw-625j-3rxh

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits
0
none known

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.

Patch / fix

  • npm react-router 7.12.0
  • npm @remix-run/server-runtime 2.17.3
  • shopify remix-run/server-runtime 2.17.3
  • shopify react-router 7.12.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-22030 updated cvss 6.5

react-router: React Router CSRF in Action/Server Action Request Processing

  • Red Hat Ansible Automation Platform 2 automation-platform-ui, ansible-automation-platform-26/gateway-rhel9 Red Hat Build of Kueue kueue/kueue-rhel9, kueue/kueue-rhel9-operator, kueue/kueue-operator-bundle, kueue/kueue-must-gather-rhel9 Red Hat Enterprise Linux 9 ipa, ipa-client, ipa-common, ipa-server, ipa-selinux, ipa-client-epn, +13 more Red Hat OpenShift AI (RHOAI) rhoai/odh-dashboard-rhel9, rhoai/odh-mod-arch-gen-ai-rhel9, rhoai/odh-mod-arch-model-registry-rhel9
    affected: workaround, no fix available “Fix deferred”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
9 mo ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
npm react-router
>=7.0.0, <7.12.0
7.12.0
npm @remix-run/server-runtime
<2.17.3
2.17.3

Affected products

  • remix-run react-router

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.