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TI-2016-04665 Aliases CVE-2016-5386GHSA-9hq4-732f-9vgf

The net/http package in Go through 1.6 does not attempt to address RFC 3875 section…

Priority MEDIUM 43CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 1 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-284.

Summary

The net/http package in Go through 1.6 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue.

Why it matters now

EPSS 0.0522 92nd percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 1 fixed, 3 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 8

CPEVersionsRoleVendor
cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*23VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:*24VulnerableFedoraproject
cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*7VulnerableOracle
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*7.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*7.2VulnerableRed Hat
cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*1.0 to before 1.6.3VulnerableGo standard library
cpe:2.3:a:golang:go:1.7:rc1:*:*:*:*:*:*1.7 rc1VulnerableGo standard library
  • cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* Versions 23 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:24:*:*:*:*:*:*:* Versions 24 Vulnerable ·Fedoraproject
  • cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* Versions 7 Vulnerable ·Oracle
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
  • cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* Versions 1.0 to before 1.6.3 Vulnerable ·Go standard library
  • cpe:2.3:a:golang:go:1.7:rc1:*:*:*:*:*:* Versions 1.7 rc1 Vulnerable ·Go standard library

Remediation

Red Hat 1 advisory

  • RHSA-2016:1538 Released 2016-08-02 · Red Hat rating Moderate
    golang security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Server Optional (v. 7) golang-1.6.3-1.el7_2.1, golang-bin-1.6.3-1.el7_2.1, golang-docs-1.6.3-1.el7_2.1 +3

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) Operational ToolsAffectedNo fix planned: Will not fix
Red Hat OpenShift Enterprise 3AffectedNo fix yet
Red Hat OpenStack Platform 8 (Liberty) Operational ToolsAffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2016:1538
Not affected: 2 products
  • Red Hat Enterprise Linux 7
  • Red Hat OpenStack Platform 9 (Mitaka) Operational Tools

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-5386
  2. 2026-10-03 Alias added: GHSA-9hq4-732f-9vgf

References

Patch 1

Advisory 8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences