---
cve: "CVE-2026-64642"
severity: "HIGH"
cvss: 8.3
epss: "95%"
vendor: "vercel"
kev: false
exploited: false
published: "2026-07-27 18:16:59"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-02T15:33:56+02:00"
---

# CVE-2026-64642

> 8.3 HIGH · 🧪 PoC

## Beschreibung

Next.js is a React framework for building full-stack web applications. In versions 16.0.0 through 16.2.10, crafted requests targeting Next.js applications using App Router built with Turbopack and a single entry in config.i18n.locales can bypass middleware/proxy based authentication. This issue has been fixed in version 16.2.11.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 9beca0821cf4606ae33466ed6f4fc75f2887a4da (Commit)
- 6bf4df14508ad6c0cd46af50c6051ee42f2d9151 (Commit)

## Referenzen

- <https://github.com/vercel/next.js/security/advisories/GHSA-6gpp-xcg3-4w24>
- <https://github.com/vercel/next.js/pull/96014>
- <https://github.com/vercel/next.js/commit/6bf4df14508ad6c0cd46af50c6051ee42f2d9151>
- <https://github.com/vercel/next.js/releases/tag/v16.2.11>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-64642) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_