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 () or Data Mode (createBrowserRouter/) is being used. This issue has been patched in @remix-run/server-runtime version 2.17.3 and react-router version 7.12.0.
CVE-2026-22030
This medium-severity CVE scores 6.5 under NVD CVSS v3. EPSS exploit probability: 0.0%, top 92% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.5
- EG Score
- 6.5(medium)
- EPSS
- 2.8%
- KEV
- Not listed
Published
January 10, 2026
Last Modified
February 5, 2026
References (1)
- security-advisories@githubhttps://github.com/remix-run/react-router/security/advisories/GHSA-h5cw-625j-3rxh
Vendor Advisories for CVE-2026-22030(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(2 across 1 ecosystem)
npm(2)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| react-router | — | 7.12.0 | — |
| @remix-run/server-runtime | — | 2.17.3 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 12× in last 7d / 42× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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- 2026-05-29 16:20 UTCEG score recompute
- 2026-05-29 13:44 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2026-22030?
When was CVE-2026-22030 disclosed?
Is CVE-2026-22030 actively exploited?
What is the CVSS score of CVE-2026-22030?
How do I remediate CVE-2026-22030?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-22030
Is Your Infrastructure Affected by CVE-2026-22030?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.