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CVE-2024-45590— body-parser vulnerable to denial of service when url encoding is enabled

Quick assessment

Affected
expressjs body-parser
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.

body-parser是expressjs开源的一个 Node.js 解析中间件。 body-parser 1.20.3之前版本存在安全漏洞，该漏洞源于容易受到拒绝服务攻击，攻击者通过向服务器发送大量请求会导致拒绝服务。

CVSS 7.5 · High EPSS 0.82% · P56

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2024-45590

Vulnerability Information
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Vulnerability Title
body-parser vulnerable to denial of service when url encoding is enabled
Source: CVE Program / CVE List V5
Vulnerability Description
body-parser is Node.js body parsing middleware. body-parser <1.20.3 is vulnerable to denial of service when url encoding is enabled. A malicious actor using a specially crafted payload could flood the server with a large number of requests, resulting in denial of service. This issue is patched in 1.20.3.
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
不对称的资源消耗(放大攻击)
Source: CVE Program / CVE List V5
Vulnerability Title
body-parser 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
body-parser是expressjs开源的一个 Node.js 解析中间件。 body-parser 1.20.3之前版本存在安全漏洞，该漏洞源于容易受到拒绝服务攻击，攻击者通过向服务器发送大量请求会导致拒绝服务。
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
expressjs body-parser < 1.20.3 -

II. Public POCs for CVE-2024-45590

# POC Description Source Link Shenlong Link
1 Exploit for CVE-2024-45590 https://github.com/dhruvik-git/CVE-2024-45590 POC Details
2 None https://github.com/Evillm/CVE-2024-45590-PoC POC Details
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Qwen3.6-35B-A3B · 7353 chars
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III. Intelligence Information for CVE-2024-45590

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Patches & Fixes for CVE-2024-45590 (1)

Same Patch Batch · expressjs · 2024-09-10 · 3 CVEs total

CVE-2024-43800 5.0 MEDIUM serve-static affected by template injection that can lead to XSS
CVE-2024-43796 5.0 MEDIUM express vulnerable to XSS via response.redirect()

IV. Related Vulnerabilities

Same product: body-parser
Same vendor: expressjs
Same weakness: CWE-405

V. Comments for CVE-2024-45590

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