---
cve: "CVE-2026-45670"
severity: "MEDIUM"
cvss: 5.9
epss: "21%"
vendor: "nuxt"
kev: false
exploited: false
published: "2026-06-12 14:16:31"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-06T03:03:59+02:00"
---

# CVE-2026-45670

> 5.9 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Benachbart | warn |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- 86f23c4cdac794cf360bac4d15356b56a84fd683 (Commit)
- 08f34b5d9f263446354459b6227a8ae0d5ff8e9f (Commit)

## Referenzen

- <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/pull/35051>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-45670) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_