---
cve: "CVE-2026-27980"
severity: "MEDIUM"
cvss: 6.9
epss: "68%"
vendor: "vercel"
kev: false
exploited: false
published: "2026-03-18 01:16:04"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T08:42:00+02:00"
---

# CVE-2026-27980

> 6.9 MEDIUM · 🧪 PoC

## Beschreibung

Next.js is a React framework for building full-stack web applications. Starting in version 10.0.0 and prior to version 16.1.7, the default Next.js image optimization disk cache (`/_next/image`) did not have a configurable upper bound, allowing unbounded cache growth. An attacker could generate many unique image-optimization variants and exhaust disk space, causing denial of service. This is fixed in version 16.1.7 by adding an LRU-backed disk cache with `images.maximumDiskCacheSize`, including eviction of least-recently-used entries when the limit is exceeded. Setting `maximumDiskCacheSize: 0` disables disk caching. If upgrading is not immediately possible, periodically clean `.next/cache/images` and/or reduce variant cardinality (e.g., tighten values for `images.localPatterns`, `images.remotePatterns`, and `images.qualities`).

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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)

- bdf3e3577a6d55ea186a48238d61fbd8da07a626 (Commit)
- 39eb8e0ac498b48855a0430fbf4c22276a73b4bd (Commit)

## Referenzen

- <https://github.com/vercel/next.js/security/advisories/GHSA-3x4c-7xq6-9pq8>
- <https://github.com/vercel/next.js/commit/39eb8e0ac498b48855a0430fbf4c22276a73b4bd>
- <https://github.com/vercel/next.js/releases/tag/v16.1.7>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-27980) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_