CVE-2026-44578
| Summary |
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.
|
| Publication Date |
May 14, 2026, 3:16 a.m. |
| Registration Date |
May 15, 2026, 4:22 a.m. |
| Last Update |
May 15, 2026, 3:34 a.m. |
|
CVSS3.1 : HIGH
|
| スコア |
8.6
|
| Vector |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N |
| 攻撃元区分(AV) |
ネットワーク |
| 攻撃条件の複雑さ(AC) |
低 |
| 攻撃に必要な特権レベル(PR) |
不要 |
| 利用者の関与(UI) |
不要 |
| 影響の想定範囲(S) |
変更あり |
| 機密性への影響(C) |
高 |
| 完全性への影響(I) |
なし |
| 可用性への影響(A) |
なし |
Affected software configurations
| Configuration1 |
or higher |
or less |
more than |
less than |
| cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* |
13.4.13 |
|
|
15.5.16 |
| cpe:2.3:a:vercel:next.js:*:*:*:*:*:node.js:*:* |
16.0.0 |
|
|
16.2.5 |
Related information, measures and tools
Common Vulnerabilities List