Is there a public exploit for CVE-2026-33245?

No public exploit for CVE-2026-33245 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-33245?

CVE-2026-33245 scores CVSS 8 (v3.1), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.19%.

What does CVE-2026-33245 affect?

CVE-2026-33245 affects remix-run react-router.

8.0 High

React Router is a router for React.

CVE-2026-33245

React Router is a router for React. In versions 7.7.0 through 7.13.1, when using React Router's unstable React Server Components (RSC) APIs, there is a potential client-side Cross-Site Scripting (XSS) vulnerability in the RSC redirect handling if redirects come from untrusted sources. This does not impact applications that are not using the unstable RSC APIs in React Router. This is patched in version 7.13.2.

Assessment

CVSS: 8 (v3.1)
Severity: High
EPSS: 0.19% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 2 June 2026
Last updated: 22 July 2026
Affected: remix-run · react-router · react-router
Weakness: CWE-79
Assigner: security-advisories@github.com

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

At the source

References

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