Medium severity · published Jun 12, 2026
CVE-2026-45669
Nuxt: Reflected XSS in `navigateTo()` external redirect
5.4
CVSS
0.2%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 7% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NU
nuxt · nuxt
>= 3.4.3, < 3.21.6; >= 4.0.0-alpha.1, < 4.4.6 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-45669
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-45669
Issue Tracking
https://github.com/nuxt/nuxt/pull/35052
Exploit
https://github.com/nuxt/nuxt/security/advisories/GHSA-fx6j-w5w5-h468
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