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CVE-2026-58044

Quick assessment

Affected
nodejs node
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

nodejs node是nodejs组织的一个事件驱动的脚本语言运行环境。 nodejs node 26.5.0及之前版本、24.18.0及之前版本和22.23.1及之前版本存在输入验证错误漏洞，该漏洞源于HTTP客户端在重建出站标头时可能省略超出maxHeadersCount/maxHeaderPairs的标头，导致请求失同步，可能造成HTTP请求走私。

AI Predicted 8.1 Difficulty: Moderate EPSS 0.27% · P18

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 3

VendorProduct Version RangeStatus
nodejs node 26.5.0≤ 26.5.0 affected
24.18.0≤ 24.18.0 affected
22.23.1≤ 22.23.1 affected
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I. Basic Information for CVE-2026-58044

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw in Node.js HTTP client can cause a request desynchronization for Node.js-based forwarding proxies that rebuild outbound headers from the visible `IncomingMessage` headers while piping the original body to a reused backend connection. Node.js can omit headers beyond `maxHeadersCount` / `maxHeaderPairs` from `req.headers`, `req.rawHeaders`, and `req.headersDistinct`, while still using those omitted headers internally for HTTP message framing. In particular, `Content-Length` can be hidden from userland while the request body is still delivered. This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Source: CVE Program / CVE List V5
Vulnerability Title
nodejs node 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
nodejs node是nodejs组织的一个事件驱动的脚本语言运行环境。 nodejs node 26.5.0及之前版本、24.18.0及之前版本和22.23.1及之前版本存在输入验证错误漏洞，该漏洞源于HTTP客户端在重建出站标头时可能省略超出maxHeadersCount/maxHeaderPairs的标头，导致请求失同步，可能造成HTTP请求走私。
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
nodejs node 26.5.0 ~ 26.5.0 -

II. Public POCs for CVE-2026-58044

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III. Intelligence Information for CVE-2026-58044

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Security Blog Posts for CVE-2026-58044 (1)

Same Patch Batch · nodejs · 2026-08-04 · 6 CVEs total

CVE-2026-58045 nodejs node 资源管理错误漏洞
CVE-2026-58041 Node.js 竞争条件问题漏洞
CVE-2026-58042 nodejs node 资源管理错误漏洞
CVE-2026-56846 Node.js 资源管理错误漏洞
CVE-2026-56848 Node.js 资源管理错误漏洞

IV. Related Vulnerabilities

Same product: node
Same vendor: nodejs
Same weakness: CWE-444

V. Comments for CVE-2026-58044

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