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CVE-2024-23641— Sending a GET or HEAD request with a body crashes SvelteKit

Quick assessment

Affected
sveltejs kit
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SvelteKit是Svelte开源的一套Web 开发框架。 SvelteKit存在输入验证错误漏洞，该漏洞源于发送GET或HEAD请求会导致应用程序崩溃。

CVSS 7.5 · High EPSS 0.76% · P54

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2024-23641

Vulnerability Information
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Vulnerability Title
Sending a GET or HEAD request with a body crashes SvelteKit
Source: CVE Program / CVE List V5
Vulnerability Description
SvelteKit is a web development kit. In SvelteKit 2, sending a GET request with a body eg `{}` to a built and previewed/hosted sveltekit app throws `Request with GET/HEAD method cannot have body.` and crashes the preview/hosting. After this happens, one must manually restart the app. `TRACE` requests will also cause the app to crash. Prerendered pages and SvelteKit 1 apps are not affected. `@sveltejs/adapter-node` versions 2.1.2, 3.0.3, and 4.0.1 and `@sveltejs/kit` version 2.4.3 contain a patch for this issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
SvelteKit 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SvelteKit是Svelte开源的一套Web 开发框架。 SvelteKit存在输入验证错误漏洞，该漏洞源于发送GET或HEAD请求会导致应用程序崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
sveltejs kit >= 2.0.0, < 2.4.3 -

II. Public POCs for CVE-2024-23641

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 6701 chars
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III. Intelligence Information for CVE-2024-23641

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Patches & Fixes for CVE-2024-23641 (1)

Vendor Advisories for CVE-2024-23641 (1)

IV. Related Vulnerabilities

Same product: kit
Same vendor: sveltejs
Same weakness: CWE-20

V. Comments for CVE-2024-23641

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