Cyber Resilience

CVE-2019-15605

Redhat Enterprise Linux Eus 7.7 … 8.6

High EPSS
Published
07 February 2020
Modified
21 November 2024
Patch / advisory
View advisory
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.57 99th percentile
Risk Priority 88 floored blend · peak EPSS

Summary

CVE-2019-15605 is a critical-severity HTTP Request/Response Smuggling (CWE-444) vulnerability in Redhat Enterprise Linux Eus. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 1% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

OWASP Top 10 for Web (2025)

A06:2025 Insecure Design

EU & UK References

Vulnerability Data

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

CWE(s)
CWE-444

Related Threats

Likely ATT&CK TechniquesAI

Techniques this vulnerability likely enables, inferred from its description, weakness type, and attributed-actor tradecraft. Confidence is per-technique.

T1190 Exploit Public-Facing Application Initial Accessconfidence: HIGH
HTTP request smuggling directly enables exploitation of a public-facing web application.
attack.mitre.org →
T1204.002 Malicious File Executionconfidence: MEDIUM
Smuggled payload can be delivered as a malicious file or request to the victim.
attack.mitre.org →
inferred from description + CWE · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2019-14287Same product: Debian Debian Linux
CVE-2023-46846Same product: Redhat Enterprise Linux
CVE-2016-5387Same product: Debian Debian Linux
CVE-2017-8291Same product: Debian Debian Linux
CVE-2016-5385Same product: Debian Debian Linux
CVE-2019-5418Same product: Debian Debian Linux
CVE-2026-2708Same product: Redhat Enterprise Linux
CVE-2023-29141Same product: Fedoraproject Fedora
CVE-2024-23829Same product: Fedoraproject Fedora
CVE-2023-25725Same product: Debian Debian Linux

Affected Assets

nodejs
node.js
10.0.0 — 10.19.0 · 12.0.0 — 12.15.0 · 13.0.0 — 13.8.0
debian
debian linux
10.0
fedoraproject
fedora
30
opensuse
leap
15.1
redhat
software collections
1.0
redhat
enterprise linux
8.0
redhat
enterprise linux desktop
7.0
redhat
enterprise linux eus
7.7, 8.1, 8.2, 8.4, 8.6
redhat
enterprise linux server
7.0
redhat
enterprise linux server aus
7.7, 8.2, 8.4, 8.6
+3 more product configuration(s) — see NVD for full list

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V4.1.3
  • V4.2.4
  • V1.5.3
  • V4.1.1

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-01 mostly match
prevents

Configuration management can enforce uniform HTTP parsing rules across intermediaries, directly mitigating inconsistent interpretation.

DE.CM-01 partial match
prevents

Network monitoring can detect smuggling attempts via anomalous HTTP traffic or logs, while eliminating the inconsistency directly aids detection of such events.

PR.IR-01 partial match
prevents

Network protections can enforce consistent HTTP proxy/firewall behavior to block smuggling, and removing the weakness helps prevent unauthorized access via request smuggling.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
detects

Security testing can detect HTTP request smuggling vulnerabilities in intermediary components.

A.8.20 Networks security partial match
degrades

Network security controls can enforce consistent HTTP parsing and proxy behavior that mitigates request smuggling.

A.8.21 Security of network services partial match
degrades

Secure network services include hardening proxies and gateways against inconsistent HTTP interpretation.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC practices require threat modeling and testing for HTTP parsing inconsistencies in intermediaries.

A.8.26 Application security requirements partial match
prevents

Application security requirements can mandate strict HTTP message validation and canonicalization.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles include consistent protocol handling and defense-in-depth for proxies.

References