CVE intelligence and bounded remediation

CVE-2019-15605 — HTTP request smuggling in Node.js 10, 12, and 13 causes malicious payload delivery when transfer-encoding is malformed

Critical CVSS 9.8

HTTP request smuggling in Node.js 10, 12, and 13 causes malicious payload delivery when transfer-encoding is malformed

Severity
Critical
CVSS
9.8 (3.1)
Published
2020-02-07
CISA KEV
Not currently listed
Ecosystem
javascript/npm
Weaknesses
CWE-444

Affected products

  • nodejs / node.js
  • debian / debian_linux / 10.0
  • fedoraproject / fedora / 30
  • opensuse / leap / 15.1
  • redhat / software_collections / 1.0
  • redhat / enterprise_linux / 8.0

Showing 6 representative product identities from 26 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

HTTP request smuggling and message-boundary ambiguity

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Check exposure

  • Inventory every proxy, CDN, gateway, load balancer, service mesh, and application server hop on affected request paths.
  • Compare documented parsing and normalization behavior for message length, transfer coding, duplicate headers, and protocol translation.
  • Identify connection reuse and which downstream services trust headers added by intermediaries.

Remediate safely

  • Update affected intermediaries and origin servers and align them on a single standards-compliant request framing policy.
  • Reject ambiguous length, transfer-coding, duplicate, malformed, and unsupported framing before forwarding.
  • Normalize or remove hop-by-hop and identity headers at one controlled boundary and add multi-hop regression tests.

Authoritative sources

Complete CVE record and remediation plan

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