Next.js Vulnerable to HTTP Request Smuggling

高 7.5CVE-2024-34350 · GHSA-77r5-gw3j-2mpf · 14/05/2024 公開 · 17/06/2026 更新

要点

CVE-2024-34350 は next.js (vercel), next に影響する深刻度「高」 (CVSS 7.5) の脆弱性です。
今後30日間に悪用される確率（EPSS）：1.2%（全脆弱性の 67.9% より高い）。
対処：13.5.1 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
next.js vercel	`≥ 13.4.0, < 13.5.1`	`13.5.1`
next npm	`≥ 13.4.0, < 13.5.1`	`13.5.1`

概要

Impact

Inconsistent interpretation of a crafted HTTP request meant that requests are treated as both a single request, and two separate requests by Next.js, leading to desynchronized responses. This led to a response queue poisoning vulnerability in the affected Next.js versions.

For a request to be exploitable, the affected route also had to be making use of the rewrites feature in Next.js.

Patches

The vulnerability is resolved in Next.js 13.5.1 and newer. This includes Next.js 14.x.

Workarounds

There are no official workarounds for this vulnerability. We recommend that you upgrade to a safe version.

References

https://portswigger.net/web-security/request-smuggling/advanced/response-queue-poisoning

NVD の説明

Next.js is a React framework that can provide building blocks to create web applications. Prior to 13.5.1, an inconsistent interpretation of a crafted HTTP request meant that requests are treated as both a single request, and two separate requests by Next.js, leading to desynchronized responses. This led to a response queue poisoning vulnerability in the affected Next.js versions. For a request to be exploitable, the affected route also had to be making use of the [rewrites](https://nextjs.org/docs/app/api-reference/next-config-js/rewrites) feature in Next.js. The vulnerability is resolved in Next.js `13.5.1` and newer.