What is CVE-2026-22030?

CVE-2026-22030 is a medium-severity vulnerability in Remix-run React-router, classified under Origin Validation Error. CVSS score: 6.5/10. Published 2026-01-10.

How severe is CVE-2026-22030?

Medium severity. CVSS v3 base score is 6.5 out of 10.

CSRF in Remix-run React-router

CVE-2026-22030

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 ser…

EPSS: 0.000 (8.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

Affected products

Remix-run React-router — versions @remix-run/router < 2.17.3, react-router >= 7.0.0, < 7.12.0

Weakness classification (CWE)

References

https://github.com/remix-run/react-router/security/advisories/GHSA-h5cw-625j-3rxh (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-22030?: CVE-2026-22030 is a medium-severity vulnerability in Remix-run React-router, classified under Origin Validation Error. CVSS score: 6.5/10. Published 2026-01-10.
How severe is CVE-2026-22030?: Medium severity. CVSS v3 base score is 6.5 out of 10.