---
cve: "CVE-2026-44577"
severity: "MEDIUM"
cvss: 5.9
epss: "74%"
vendor: "vercel"
kev: false
exploited: false
published: "2026-05-13 17:16:23"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-17T18:19:42+02:00"
---

# CVE-2026-44577

> 5.9 MEDIUM · 🧪 PoC

## Beschreibung

Next.js is a React framework for building full-stack web applications. From 10.0.0 to before 15.5.16 and 16.2.5, when self-hosting Next.js with the default image loader, the Image Optimization API fetches local images entirely into memory without enforcing a maximum size limit. An attacker could cause out-of-memory conditions by requesting large local assets from the /_next/image endpoint that match the images.localPatterns configuration (by default, all patterns are allowed). This vulnerability is fixed in 15.5.16 and 16.2.5.

## 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)

- ad6fd4e50e5aba20b60d283c42b89273a3167ccd (Commit)
- 766148f9cd48c0e218acafcd0f15defc14871bf4 (Commit)

## Referenzen

- <https://github.com/vercel/next.js/security/advisories/GHSA-h64f-5h5j-jqjh>
- <https://access.redhat.com/errata/RHSA-2026:34608>
- <https://access.redhat.com/errata/RHSA-2026:37272>
- <https://access.redhat.com/errata/RHSA-2026:40974>
- <https://access.redhat.com/errata/RHSA-2026:54435>
- <https://access.redhat.com/security/cve/CVE-2026-44577>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2477194>
- <https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44577.json>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-44577) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_