Nuxt: Reflected XSS in `navigateTo()` external redirect
CVE-2026-45669

5.3MEDIUM

Key Information:

Vendor

Nuxt

Status
Nuxt
Vendor
CVE Published:
12 June 2026

What is CVE-2026-45669?

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 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.

Affected Version(s)

nuxt >= 3.4.3, < 3.21.6 < 3.4.3, 3.21.6

nuxt >= 4.0.0-alpha.1, < 4.4.6 < 4.0.0-alpha.1, 4.4.6

References

https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6...
x_refsource_CONFIRM
https://github.com/nuxt/nuxt/pull/35052
x_refsource_MISC

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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