CVE-2016-2086

Node.js 0.10.x before 0.10.42, 0.12.x before 0.12.10, 4.x before 4.3.0, and 5.x before 5.6.0 allow remote attackers to conduct HTTP request smuggling attacks via a crafted Content-Length HTTP header.

Published: 2016-04-07 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-2086 is rated High Risk (67.4/100): CVSS High severity, with high exploitation likelihood (EPSS 6.26%, 93th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +5.81% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-2086

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.45% 6.26% +5.81%
2 2025-03-30 1.57% 0.45% -1.11%
3 2025-03-29 — 1.57% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-2086

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2016-2086

OS Trackers for CVE-2016-2086

vendor priority summary link
debian unimportant CVE-2016-2086 unimportant priority: Debian including 1 source packages (nodejs), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2016-2086
gentoo normal CVE-2016-2086: 1 GLSA(s) (201612-43), 1 atom(s) (net-libs/nodejs); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-2086
redhat medium — https://access.redhat.com/security/cve/CVE-2016-2086
suse medium CVE-2016-2086 severity moderate: SUSE including 57 source package names (MozillaFirefox-68.2.0-78.51.4, MozillaFirefox-branding-SLED-68-21.9.8, …), 215 product×package rows across 17 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (17 product lines)): Fixed 143, Known Not Affected 72. https://www.suse.com/security/cve/CVE-2016-2086/
ubuntu low CVE-2016-2086 low priority: Ubuntu including 1 source packages (nodejs), 24 status rows across 24 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, precise, questing, trusty, upstream, wily, xenial, yakkety, zesty): not-affected 16, ignored 5, needed 2, released 1. https://ubuntu.com/security/CVE-2016-2086

Affected software / configurations for CVE-2016-2086

Vendor Product Version Raw CPE
nodejs node.js 0.10.0 cpe:2.3:a:nodejs:node.js:0.10.0:*:*:*:*:*:*:*
nodejs node.js 0.10.1 cpe:2.3:a:nodejs:node.js:0.10.1:*:*:*:*:*:*:*
nodejs node.js 0.10.2 cpe:2.3:a:nodejs:node.js:0.10.2:*:*:*:*:*:*:*
nodejs node.js 0.10.3 cpe:2.3:a:nodejs:node.js:0.10.3:*:*:*:*:*:*:*
nodejs node.js 0.10.4 cpe:2.3:a:nodejs:node.js:0.10.4:*:*:*:*:*:*:*
nodejs node.js 0.10.5 cpe:2.3:a:nodejs:node.js:0.10.5:*:*:*:*:*:*:*
nodejs node.js 0.10.6 cpe:2.3:a:nodejs:node.js:0.10.6:*:*:*:*:*:*:*
nodejs node.js 0.10.7 cpe:2.3:a:nodejs:node.js:0.10.7:*:*:*:*:*:*:*
nodejs node.js 0.10.8 cpe:2.3:a:nodejs:node.js:0.10.8:*:*:*:*:*:*:*
nodejs node.js 0.10.9 cpe:2.3:a:nodejs:node.js:0.10.9:*:*:*:*:*:*:*
nodejs node.js 0.10.10 cpe:2.3:a:nodejs:node.js:0.10.10:*:*:*:*:*:*:*
nodejs node.js 0.10.11 cpe:2.3:a:nodejs:node.js:0.10.11:*:*:*:*:*:*:*
nodejs node.js 0.10.12 cpe:2.3:a:nodejs:node.js:0.10.12:*:*:*:*:*:*:*
nodejs node.js 0.10.13 cpe:2.3:a:nodejs:node.js:0.10.13:*:*:*:*:*:*:*
nodejs node.js 0.10.14 cpe:2.3:a:nodejs:node.js:0.10.14:*:*:*:*:*:*:*
nodejs node.js 0.10.15 cpe:2.3:a:nodejs:node.js:0.10.15:*:*:*:*:*:*:*
nodejs node.js 0.10.16 cpe:2.3:a:nodejs:node.js:0.10.16:*:*:*:*:*:*:*
nodejs node.js 0.10.16-isaacs-manual cpe:2.3:a:nodejs:node.js:0.10.16-isaacs-manual:*:*:*:*:*:*:*
nodejs node.js 0.10.17 cpe:2.3:a:nodejs:node.js:0.10.17:*:*:*:*:*:*:*
nodejs node.js 0.10.18 cpe:2.3:a:nodejs:node.js:0.10.18:*:*:*:*:*:*:*
nodejs node.js 0.10.19 cpe:2.3:a:nodejs:node.js:0.10.19:*:*:*:*:*:*:*
nodejs node.js 0.10.20 cpe:2.3:a:nodejs:node.js:0.10.20:*:*:*:*:*:*:*
nodejs node.js 0.10.21 cpe:2.3:a:nodejs:node.js:0.10.21:*:*:*:*:*:*:*
nodejs node.js 0.10.22 cpe:2.3:a:nodejs:node.js:0.10.22:*:*:*:*:*:*:*
nodejs node.js 0.10.23 cpe:2.3:a:nodejs:node.js:0.10.23:*:*:*:*:*:*:*
nodejs node.js 0.10.24 cpe:2.3:a:nodejs:node.js:0.10.24:*:*:*:*:*:*:*
nodejs node.js 0.10.25 cpe:2.3:a:nodejs:node.js:0.10.25:*:*:*:*:*:*:*
nodejs node.js 0.10.26 cpe:2.3:a:nodejs:node.js:0.10.26:*:*:*:*:*:*:*
nodejs node.js 0.10.27 cpe:2.3:a:nodejs:node.js:0.10.27:*:*:*:*:*:*:*
nodejs node.js 0.10.28 cpe:2.3:a:nodejs:node.js:0.10.28:*:*:*:*:*:*:*
nodejs node.js 0.10.29 cpe:2.3:a:nodejs:node.js:0.10.29:*:*:*:*:*:*:*
nodejs node.js 0.10.30 cpe:2.3:a:nodejs:node.js:0.10.30:*:*:*:*:*:*:*
nodejs node.js 0.10.31 cpe:2.3:a:nodejs:node.js:0.10.31:*:*:*:*:*:*:*
nodejs node.js 0.10.32 cpe:2.3:a:nodejs:node.js:0.10.32:*:*:*:*:*:*:*
nodejs node.js 0.10.33 cpe:2.3:a:nodejs:node.js:0.10.33:*:*:*:*:*:*:*
nodejs node.js 0.10.34 cpe:2.3:a:nodejs:node.js:0.10.34:*:*:*:*:*:*:*
nodejs node.js 0.10.35 cpe:2.3:a:nodejs:node.js:0.10.35:*:*:*:*:*:*:*
nodejs node.js 0.10.36 cpe:2.3:a:nodejs:node.js:0.10.36:*:*:*:*:*:*:*
nodejs node.js 0.10.37 cpe:2.3:a:nodejs:node.js:0.10.37:*:*:*:*:*:*:*
nodejs node.js 0.10.38 cpe:2.3:a:nodejs:node.js:0.10.38:*:*:*:*:*:*:*
nodejs node.js 0.10.39 cpe:2.3:a:nodejs:node.js:0.10.39:*:*:*:*:*:*:*
nodejs node.js 0.10.40 cpe:2.3:a:nodejs:node.js:0.10.40:*:*:*:*:*:*:*
nodejs node.js 0.10.41 cpe:2.3:a:nodejs:node.js:0.10.41:*:*:*:*:*:*:*
nodejs node.js 0.12.0 cpe:2.3:a:nodejs:node.js:0.12.0:*:*:*:*:*:*:*
nodejs node.js 0.12.1 cpe:2.3:a:nodejs:node.js:0.12.1:*:*:*:*:*:*:*
nodejs node.js 0.12.2 cpe:2.3:a:nodejs:node.js:0.12.2:*:*:*:*:*:*:*
nodejs node.js 0.12.3 cpe:2.3:a:nodejs:node.js:0.12.3:*:*:*:*:*:*:*
nodejs node.js 0.12.4 cpe:2.3:a:nodejs:node.js:0.12.4:*:*:*:*:*:*:*
nodejs node.js 0.12.5 cpe:2.3:a:nodejs:node.js:0.12.5:*:*:*:*:*:*:*
nodejs node.js 0.12.6 cpe:2.3:a:nodejs:node.js:0.12.6:*:*:*:*:*:*:*
nodejs node.js 0.12.7 cpe:2.3:a:nodejs:node.js:0.12.7:*:*:*:*:*:*:*
nodejs node.js 0.12.8 cpe:2.3:a:nodejs:node.js:0.12.8:*:*:*:*:*:*:*
nodejs node.js 0.12.9 cpe:2.3:a:nodejs:node.js:0.12.9:*:*:*:*:*:*:*
nodejs node.js 4.0.0 cpe:2.3:a:nodejs:node.js:4.0.0:*:*:*:*:*:*:*
nodejs node.js 4.1.0 cpe:2.3:a:nodejs:node.js:4.1.0:*:*:*:*:*:*:*
nodejs node.js 4.1.1 cpe:2.3:a:nodejs:node.js:4.1.1:*:*:*:*:*:*:*
nodejs node.js 4.1.2 cpe:2.3:a:nodejs:node.js:4.1.2:*:*:*:*:*:*:*
nodejs node.js 4.2.0 cpe:2.3:a:nodejs:node.js:4.2.0:*:*:*:*:*:*:*
nodejs node.js 4.2.1 cpe:2.3:a:nodejs:node.js:4.2.1:*:*:*:*:*:*:*
nodejs node.js 4.2.2 cpe:2.3:a:nodejs:node.js:4.2.2:*:*:*:*:*:*:*
nodejs node.js 4.2.3 cpe:2.3:a:nodejs:node.js:4.2.3:*:*:*:*:*:*:*
nodejs node.js 4.2.4 cpe:2.3:a:nodejs:node.js:4.2.4:*:*:*:*:*:*:*
nodejs node.js 4.2.5 cpe:2.3:a:nodejs:node.js:4.2.5:*:*:*:*:*:*:*
nodejs node.js 4.2.6 cpe:2.3:a:nodejs:node.js:4.2.6:*:*:*:*:*:*:*
nodejs node.js 5.0.0 cpe:2.3:a:nodejs:node.js:5.0.0:*:*:*:*:*:*:*
nodejs node.js 5.1.0 cpe:2.3:a:nodejs:node.js:5.1.0:*:*:*:*:*:*:*
nodejs node.js 5.1.1 cpe:2.3:a:nodejs:node.js:5.1.1:*:*:*:*:*:*:*
nodejs node.js 5.2.0 cpe:2.3:a:nodejs:node.js:5.2.0:*:*:*:*:*:*:*
nodejs node.js 5.3.0 cpe:2.3:a:nodejs:node.js:5.3.0:*:*:*:*:*:*:*
nodejs node.js 5.4.0 cpe:2.3:a:nodejs:node.js:5.4.0:*:*:*:*:*:*:*
nodejs node.js 5.4.1 cpe:2.3:a:nodejs:node.js:5.4.1:*:*:*:*:*:*:*
nodejs node.js 5.5.0 cpe:2.3:a:nodejs:node.js:5.5.0:*:*:*:*:*:*:*
fedoraproject fedora 22 cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
fedoraproject fedora 23 cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*

References for CVE-2016-2086

cvelogic Threat Intelligence