CVE-2026-45670 | Nuxt is an open-source web development framework for Vue.js.… | CVSS 5.9 MEDIUM

Description

Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-builder versions 3.15.4 to before 3.21.6, and 4.0.0-alpha.1 to before 4.4.6, there is an incomplete fix for GHSA-4gf7-ff8x-hq99. Source code may be stolen during dev when using the webpack / rspack builder if the dev server is bound to a non-loopback address (e.g. nuxt dev --host) and the developer opens a malicious site on the same network. This issue has been patched in versions 3.21.6 and 4.4.6.

Metadata

CVE ID: CVE-2026-45670
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-05-12 21:59 UTC
Published: 2026-06-12 12:51 UTC
Last updated: 2026-06-12 14:18 UTC
Primary CWE: CWE-749
CWE-749: Exposed Dangerous Method or Function
Vendor / Product: nuxt / nuxt
Sources: cve.org · NVD

Severity & Metrics

5.9 MEDIUM CVSS 4.0

CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: no
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
nuxt	nuxt	—	>= 3.15.4, < 3.21.6, >= 4.0.0-alpha.1, < 4.4.6

Weakness (CWE)

CWE	Source	Description
CWE-749	cna	CWE-749: Exposed Dangerous Method or Function

CVSS scores (1)

Score	Severity	Version	Source	Vector
5.9	MEDIUM	4.0	cna	CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

References (3)

https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g
https://github.com/nuxt/nuxt/security/advisories/GHSA-4gf7-ff8x-hq99 https://github.com/nuxt/nuxt/security/advisories/GHSA-4gf7-ff8x-hq99
https://github.com/nuxt/nuxt/pull/35051 https://github.com/nuxt/nuxt/pull/35051