---
cve: "CVE-2026-47428"
severity: "CRITICAL"
cvss: 9.6
epss: "39%"
vendor: "vitest-dev"
kev: false
exploited: false
published: "2026-07-14 20:17:02"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T04:26:21+02:00"
---

# CVE-2026-47428

> 9.6 CRITICAL · 🧪 PoC

## Beschreibung

Vitest is a testing framework powered by Vite. From 4.0.17 until 4.1.6 and 5.0.0-beta.3, Vitest Browser Mode served /__vitest_test__/ with the otelCarrier query parameter inserted directly into an inline module script, allowing a crafted browser-runner URL to execute arbitrary JavaScript in the Vitest server origin and recover VITEST_API_TOKEN for authenticated API calls. This issue is fixed in versions 4.1.6 and 5.0.0-beta.3.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- a8fd24c1cad2320b19fcc651413c7d928423bdc1 (Commit)
- 0f274d0d645e874952d13ec27c4a9f6ff6aa57a1 (Commit)

## Referenzen

- <https://github.com/vitest-dev/vitest/security/advisories/GHSA-2h32-95rg-cppp>
- <https://github.com/vitest-dev/vitest/pull/10283>
- <https://github.com/vitest-dev/vitest/pull/10285>
- <https://github.com/vitest-dev/vitest/commit/18af98cee1830604d57f6a02bf28f8067cdffc06>
- <https://github.com/vitest-dev/vitest/commit/3514f9fa135c90e1c35754fc4d27c9cf351faafa>
- <https://github.com/vitest-dev/vitest/releases/tag/v4.1.6>
- <https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-47428) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_