8.6

CVE-2026-44578

Medienbericht

Next.js: Server-side request forgery in applications using WebSocket upgrades

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Vercel ≫ Next.Js SwPlatformnode.js Version >= 13.4.13 < 15.5.16
Vercel ≫ Next.Js SwPlatformnode.js Version >= 16.0.0 < 16.2.5
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 38.7% 0.984
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 8.6 3.9 4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 8.6 3.9 4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CWE-918 Server-Side Request Forgery (SSRF)

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

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VulnDex Intel
Media Report
18.05.2026 17:45
https://github.com/vercel/next.js/security/advisories/GHSA-c4j6-fc7j-m34r
Vendor Advisory
Mitigation
https://access.redhat.com/security/cve/CVE-2026-44578
https://bugzilla.redhat.com/show_bug.cgi?id=2477187
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-44578.json
https://access.redhat.com/errata/RHSA-2026:34608