What is CVE-2026-46342?

CVE-2026-46342 is a medium-severity vulnerability in Nuxt, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-06-12.

How severe is CVE-2026-46342?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Nuxt

CVE-2026-46342

Nuxt is an open-source web development framework for Vue.js. In Nuxt versions 3.1.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6 and @nuxt/nitro-server versions 3.20.0 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, the /__nuxt_i…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (0.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Nuxt — versions >= 3.1.0, < 3.21.6, >= 4.0.0-alpha.1, < 4.4.6
Nuxt Nuxt\/nitro-server

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_MISC, Issue Tracking)
security-advisories@github.com (x_refsource_CONFIRM, Patch, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-46342?: CVE-2026-46342 is a medium-severity vulnerability in Nuxt, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-06-12.
How severe is CVE-2026-46342?: Medium severity. CVSS v3 base score is 5.4 out of 10.