Public proof of conceptFix available

CVE-2019-15605

A public proof of concept exists; no exploitation attested.

Published2020-02-07
WeaknessCWE-444

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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

Timeline

dates in UTC

2020-02-0715:15CVE publishedNVD
2026-10-2319:23First public proof of conceptPoC-in-GitHub
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-15605?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-15605?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Redhat enterprise linux eus

Branch	Affected	Fixed in	Source
7.7	= 7.7	no fix published	NVD
8.1	= 8.1	no fix published	NVD
8.2	= 8.2	no fix published	NVD
8.4	= 8.4	no fix published	NVD
8.6	= 8.6	no fix published	NVD

Redhat enterprise linux server aus

Branch	Affected	Fixed in	Source
7.7	= 7.7	no fix published	NVD
8.2	= 8.2	no fix published	NVD
8.4	= 8.4	no fix published	NVD
8.6	= 8.6	no fix published	NVD

Redhat enterprise linux server tus

Branch	Affected	Fixed in	Source
7.7	= 7.7	no fix published	NVD
8.2	= 8.2	no fix published	NVD
8.4	= 8.4	no fix published	NVD
8.6	= 8.6	no fix published	NVD

10 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

nodejs-nodemonAlmaLinux:8all versions · fixed in 1.18.3-1.module_el8.3.0+2023+d2377ea3
nodejs-nodemonAlmaLinux:8all versions · fixed in 1.18.3-1.module_el8.3.0+2047+b07ac28e
nodejs-packagingAlmaLinux:8all versions · fixed in 17-3.module_el8.3.0+2023+d2377ea3
nodejs-packagingAlmaLinux:8all versions · fixed in 17-3.module_el8.4.0+2224+b07ac28e
nodejs-packagingAlmaLinux:8all versions · fixed in 17-3.module_el8.4.0+2521+c668cc9f

Full record on NVD

Fix

Advisories and patches

nodejs.orgRelease Notes · Vendor Advisory
nodejs.orgRelease Notes · Vendor Advisory
nodejs.orgVendor Advisory
nodejs.orgVendor Advisory
www.oracle.comPatch
www.oracle.comPatch

Detection

read 2026-10-23 19:23 UTC

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: 1 repository, unverified0-9194/node-poc-http-smuggling

Sources

NVDCVSS 3.19.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
CNAweakness (CWE)CWE-444read 2026-10-23
NVDweakness (CWE)CWE-444read 2026-10-23
FIRST EPSSEPSS score57.1 %read 2026-10-23
PoC-in-GitHubproof of concept1read 2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2020-02-07
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-15605?

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

Is CVE-2019-15605 actively exploited?

Active exploitation of CVE-2019-15605 has not been confirmed. Its EPSS score was 57.1% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-15605?

CVE-2019-15605 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Running nodejs-nodemon? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this product CISA KEV additions, October 2026 Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Following what attackers exploit right now? The CISA KEV additions of the month, with their patch deadlines.
Running this software? Vulnerability monitoring alerts you to new vulnerabilities in your products.

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database