---
cve: "CVE-2025-59471"
severity: "MEDIUM"
cvss: 5.9
epss: "44%"
vendor: "vercel"
kev: false
exploited: false
published: "2026-01-26 22:15:52"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T21:49:23+02:00"
---

# CVE-2025-59471

> 5.9 MEDIUM · 🧪 PoC

## Beschreibung

A denial of service vulnerability exists in self-hosted Next.js applications that have `remotePatterns` configured for the Image Optimizer. The image optimization endpoint (`/_next/image`) loads external images entirely into memory without enforcing a maximum size limit, allowing an attacker to cause out-of-memory conditions by requesting optimization of arbitrarily large images. This vulnerability requires that `remotePatterns` is configured to allow image optimization from external domains and that the attacker can serve or control a large image on an allowed domain.

Strongly consider upgrading to 15.5.10 or 16.1.5 to reduce risk and prevent availability issues in Next applications.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- 60a2aa97b6692d3a56e483f0ff93febaf6f33fd6 (Commit)
- acba4a6b9f48e0a067c592dac322410c0e122018 (Commit)

## Referenzen

- <https://github.com/vercel/next.js/security/advisories/GHSA-9g9p-9gw9-jx7f>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-59471) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_