CVE-2026-58044

lowpriority · track · 0EPSS 0.003 · 18 %ileDEEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.27% (18th) EPSS
CVSS 3.7 · low
Is it mine?
18 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-22

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**.

01

cvss

Technical severity, 0–10. One row per scoring source.

3.7
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.03.7lowCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · ENISA EU
v3.03.7lowCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · support@hackerone.comexploitability 2.2 · impact 1.4
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-444US
04

affected products (18)

Products and version ranges known to be affected.

05

advisories (3)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-2585Node.js: Mehrere SchwachstellenDeutsch2026-07-29csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in Node.js ausnutzen, um einen Denial of Service Angriff durchzuführen, um Sicherheitsvorkehrungen zu umgehen, und um Dateien zu manipulieren.

  • BIT-node-2026-580442026-08-17vendor · osvUS

    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**.

  • BIT-node-min-2026-580442026-08-17vendor · osvUS

    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**.

06

also known as (5)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdosvcert_bundNVDCVE.orgMITRE
published 2026-08-04modified 2026-09-03
08

references (3)

External citations — patches, advisories, analysis.

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