CVE-2016-1000111

21

FAUCET Score

CVE-2016-1000111 is an "httpoxy" vulnerability affecting Twisted versions prior to 16.3.1. It allows remote attackers to redirect a CGI application's outbound HTTP traffic to an arbitrary proxy server by injecting a crafted Proxy header into an HTTP request. This vulnerability has a CVSS score of 5.3 (Medium) with a network attack vector and low impact on integrity, requiring no user interaction or privileges. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 16.3.1CPE matchmatch criteria	cpe:2.3:a:twisted:twisted::::::::

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

Exploitability Score

3.9

Impact Score

1.4

CvssVersion

3.1

Exploit Intelligence

EPSS Score

2.76%

Probability of exploitation in next 30 days

EPSS Percentile

84.8%

Percentile rank of EPSS score among Peer Group

As of 2026-07-28

Model: v2026.06.15

This CVE's current EPSS score of 0.0276 is in the 78th percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (30)

pippatch availablevia ghsa

Product: twistedFixed in: 16.3.1

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 6Fixed in: python-twisted-web-0:8.2.0-5.el6_8

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 7Fixed in: python-twisted-web-0:12.1.0-5.el7_2

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 6Fixed in: candlepin-0:0.9.54.26-1.el6

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 6Fixed in: foreman-0:1.11.0.86-1.el6sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 6Fixed in: foreman-installer-1:1.11.0.18-1.el6sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 6Fixed in: katello-0:3.0.0-33.el6sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 6Fixed in: katello-installer-base-0:3.0.0.101-1.el6sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 6Fixed in: pulp-0:2.8.7.18-1.el6sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 6Fixed in: pulp-puppet-0:2.8.7.2-1.el6sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 6Fixed in: qpid-dispatch-0:0.4-27.el6sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 6Fixed in: qpid-proton-0:0.9-21.el6

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 6Fixed in: rubygem-smart_proxy_openscap-0:0.5.3.9-2.el6sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 6Fixed in: satellite-0:6.2.14-4.0.el6sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 6Fixed in: tfm-rubygem-foreman_theme_satellite-0:0.1.47.2-1.el6sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 6Fixed in: tfm-rubygem-katello-0:3.0.0.162-1.el6sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: candlepin-0:0.9.54.26-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: foreman-0:1.11.0.86-1.el7sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: foreman-installer-1:1.11.0.18-1.el7sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: katello-0:3.0.0-33.el7sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: katello-installer-base-0:3.0.0.101-1.el7sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: pulp-0:2.8.7.18-1.el7sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: pulp-puppet-0:2.8.7.2-1.el7sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: python-twisted-web-0:12.1.0-5.el7_2

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: qpid-dispatch-0:0.4-27.el7sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: qpid-proton-0:0.9-21.el7

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: rubygem-smart_proxy_openscap-0:0.5.3.9-2.el7sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: satellite-0:6.2.14-4.0.el7sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: tfm-rubygem-foreman_theme_satellite-0:0.1.47.2-1.el7sat

redhatpatch availablevia redhat_api

Product: Red Hat Satellite 6.2 for RHEL 7Fixed in: tfm-rubygem-katello-0:3.0.0.162-1.el7sat

Vendor Advisories (2)

pipGHSA-3gqj-cmxr-p4x2medium

Forced Browsing in Twisted

redhatCVE-2016-1000111Important

Twisted: sets environmental variable based on user supplied Proxy request header

References

twistedmatrix.com / pipermail/twisted-web/2016-August/005268.html

Mailing ListVendor Advisory

twistedmatrix.com / trac/ticket/8623

PatchVendor Advisory

openwall.com / lists/oss-security/2016/07/18/6

Mailing ListThird Party Advisory

oracle.com / technetwork/topics/security/linuxbulletinoct2016-3090545.html

Third Party Advisory