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CVE-2026-44578

HIGH(8.6)

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

Risk Signal Score33/100 — MITTEL
  • CVSS 8.6 — Hoch
  • EPSS 39%

EPSS-Score

39%

Exploit-Wahrscheinlichkeit (30 Tage)

CVSS Score

8.6

Technische Schwere

Beschreibung

Next.js is a React framework for building full-stack web applications. From 13.4.13 to before 15.5.16 and 16.2.5, self-hosted applications using the built-in Node.js server can be vulnerable to server-side request forgery through crafted WebSocket upgrade requests. An attacker can cause the server to proxy requests to arbitrary internal or external destinations, which may expose internal services or cloud metadata endpoints. Vercel-hosted deployments are not affected. This vulnerability is fixed in 15.5.16 and 16.2.5.

GitHub Advisories

GHSA-c4j6-fc7j-m34rHIGH

Next.js vulnerable to server-side request forgery in applications using WebSocket upgrades

npm/next→ 15.5.16
GitHub Advisory

Referenzen