Vulnerability Description
Nuxt is an open-source web development framework for Vue.js. From versions 3.4.3 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, navigateTo() with external: true generates a server-side HTML redirect body containing a <meta http-equiv="refresh"> tag. The destination URL is only sanitized by replacing " with %22, leaving <, >, &, and ' unencoded. An attacker who can influence the URL passed to navigateTo(url, { external: true }) can break out of the content="…" attribute and inject arbitrary HTML/JavaScript that executes under the application's origin. This issue has been patched in versions 3.21.6 and 4.4.6.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nuxt | Nuxt | >= 3.4.3, < 3.21.6 |
Related Weaknesses (CWE)
References
- https://github.com/nuxt/nuxt/pull/35052Issue Tracking
- https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468ExploitPatchVendor Advisory
- https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468ExploitPatchVendor Advisory
FAQ
What is CVE-2026-45669?
CVE-2026-45669 is a vulnerability with a CVSS score of 5.4 (MEDIUM). Nuxt is an open-source web development framework for Vue.js. From versions 3.4.3 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, navigateTo() with external: true generates a server-side HTML redir...
How severe is CVE-2026-45669?
CVE-2026-45669 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-45669?
Check the references section above for vendor advisories and patch information. Affected products include: Nuxt Nuxt.