CVE-2026-58044 (GCVE-0-2026-58044)

Vulnerability from cvelistv5 – Published: 2026-08-04 00:49 – Updated: 2026-08-04 15:03
VLAI
Summary
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**.
Severity
3.7 (Low)
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 14:19 UTC
CWE
Assigner
hackerone CNA under the mitre root
CNA scorecard D 59/100 over 213 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
nodejs node Affected: 26.5.0 , ≤ 26.5.0 (semver)
Affected: 24.18.0 , ≤ 24.18.0 (semver)
Affected: 22.23.1 , ≤ 22.23.1 (semver)
guessed Create a notification for this product.
Show details on NVD website
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