The CGIHandler class in Python before 2.7.12 does not protect against the HTTP_PROXY…
Priority LOW 35CWE-601Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Partial Red Hat: 24 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-601.
Summary
The CGIHandler class in Python before 2.7.12 does not protect against the HTTP_PROXY variable name clash in a CGI script, which could allow a remote attacker to redirect HTTP requests.
Why it matters now
EPSS 0.04526 91st percentileScored 2026-11-07
Fix Partial Red Hat: 5 advisoriesRed Hat: 24 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:python:python:*:*:*:*:*:*:*:* | 2.7.0 to before 2.7.13; 3.3.0 to before 3.3.7; 3.4.0 to before 3.4.6; 3.5.0 to before 3.5.3 | Vulnerable | python-pillow |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* | 23 | Vulnerable | Fedoraproject |
- cpe:2.3:a:python:python:*:*:*:*:*:*:*:* Versions 2.7.0 to before 2.7.13; 3.3.0 to before 3.3.7; 3.4.0 to before 3.4.6; 3.5.0 to before 3.5.3 Vulnerable ·python-pillow
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:* Versions 23 Vulnerable ·Fedoraproject
Remediation
Red Hat 5 advisories
- RHSA-2016:1629 Released 2016-08-18 · Red Hat rating Moderatepython33-python security update
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) python33-python-3.3.2-18.el6, python33-python-debug-3.3.2-18.el6, python33-python-devel-3.3.2-18.el6 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) python33-python-3.3.2-16.el7, python33-python-debug-3.3.2-16.el7, python33-python-devel-3.3.2-16.el7 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) python33-python-3.3.2-18.el6, python33-python-debug-3.3.2-18.el6, python33-python-devel-3.3.2-18.el6 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) python33-python-3.3.2-18.el6, python33-python-debug-3.3.2-18.el6, python33-python-devel-3.3.2-18.el6 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) python33-python-3.3.2-16.el7, python33-python-debug-3.3.2-16.el7, python33-python-devel-3.3.2-16.el7 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) python33-python-3.3.2-16.el7, python33-python-debug-3.3.2-16.el7, python33-python-devel-3.3.2-16.el7 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) python33-python-3.3.2-18.el6, python33-python-debug-3.3.2-18.el6, python33-python-devel-3.3.2-18.el6 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) python33-python-3.3.2-16.el7, python33-python-debug-3.3.2-16.el7, python33-python-devel-3.3.2-16.el7 +4
- RHSA-2016:1630 Released 2016-08-18 · Red Hat rating Moderaterh-python34-python security update
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) rh-python34-python-3.4.2-14.el6, rh-python34-python-debug-3.4.2-14.el6, rh-python34-python-devel-3.4.2-14.el6 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-python34-python-3.4.2-13.el7, rh-python34-python-debug-3.4.2-13.el7, rh-python34-python-devel-3.4.2-13.el7 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) rh-python34-python-3.4.2-14.el6, rh-python34-python-debug-3.4.2-14.el6, rh-python34-python-devel-3.4.2-14.el6 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) rh-python34-python-3.4.2-14.el6, rh-python34-python-debug-3.4.2-14.el6, rh-python34-python-devel-3.4.2-14.el6 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) rh-python34-python-3.4.2-13.el7, rh-python34-python-debug-3.4.2-13.el7, rh-python34-python-devel-3.4.2-13.el7 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) rh-python34-python-3.4.2-13.el7, rh-python34-python-debug-3.4.2-13.el7, rh-python34-python-devel-3.4.2-13.el7 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) rh-python34-python-3.4.2-14.el6, rh-python34-python-debug-3.4.2-14.el6, rh-python34-python-devel-3.4.2-14.el6 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-python34-python-3.4.2-13.el7, rh-python34-python-debug-3.4.2-13.el7, rh-python34-python-devel-3.4.2-13.el7 +4
- RHSA-2016:1628 Released 2016-08-18 · Red Hat rating Moderatepython27-python security update
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) python27-python-2.7.8-18.el6, python27-python-debug-2.7.8-18.el6, python27-python-devel-2.7.8-18.el6 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) python27-python-2.7.8-16.el7, python27-python-debug-2.7.8-16.el7, python27-python-devel-2.7.8-16.el7 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) python27-python-2.7.8-18.el6, python27-python-debug-2.7.8-18.el6, python27-python-devel-2.7.8-18.el6 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) python27-python-2.7.8-18.el6, python27-python-debug-2.7.8-18.el6, python27-python-devel-2.7.8-18.el6 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) python27-python-2.7.8-16.el7, python27-python-debug-2.7.8-16.el7, python27-python-devel-2.7.8-16.el7 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) python27-python-2.7.8-16.el7, python27-python-debug-2.7.8-16.el7, python27-python-devel-2.7.8-16.el7 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) python27-python-2.7.8-18.el6, python27-python-debug-2.7.8-18.el6, python27-python-devel-2.7.8-18.el6 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) python27-python-2.7.8-16.el7, python27-python-debug-2.7.8-16.el7, python27-python-devel-2.7.8-16.el7 +4
Show 2 more Red Hat advisories
- RHSA-2016:1626 Released 2016-08-18 · Red Hat rating Moderatepython security update
- Red Hat Enterprise Linux Client (v. 7) python-2.7.5-38.el7_2, python-libs-2.7.5-38.el7_2
- Red Hat Enterprise Linux Client Optional (v. 7) python-debug-2.7.5-38.el7_2, python-devel-2.7.5-38.el7_2, python-test-2.7.5-38.el7_2 +2
- Red Hat Enterprise Linux ComputeNode (v. 7) python-2.7.5-38.el7_2, python-devel-2.7.5-38.el7_2, python-libs-2.7.5-38.el7_2
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-debug-2.7.5-38.el7_2, python-test-2.7.5-38.el7_2, python-tools-2.7.5-38.el7_2 +1
- Red Hat Enterprise Linux Desktop (v. 6) python-2.6.6-66.el6_8, python-libs-2.6.6-66.el6_8, tkinter-2.6.6-66.el6_8
- Red Hat Enterprise Linux Desktop Optional (v. 6) python-devel-2.6.6-66.el6_8, python-test-2.6.6-66.el6_8, python-tools-2.6.6-66.el6_8
- Red Hat Enterprise Linux HPC Node (v. 6) python-2.6.6-66.el6_8, python-devel-2.6.6-66.el6_8, python-libs-2.6.6-66.el6_8
- Red Hat Enterprise Linux HPC Node Optional (v. 6) python-test-2.6.6-66.el6_8, python-tools-2.6.6-66.el6_8, tkinter-2.6.6-66.el6_8
- Red Hat Enterprise Linux Server (v. 6) python-2.6.6-66.el6_8, python-devel-2.6.6-66.el6_8, python-devel-2.6.6-66.el6_8.ppc +3
- Red Hat Enterprise Linux Server (v. 7) python-2.7.5-38.el7_2, python-devel-2.7.5-38.el7_2, python-libs-2.7.5-38.el7_2 +1
- Red Hat Enterprise Linux Server Optional (v. 6) python-test-2.6.6-66.el6_8, python-tools-2.6.6-66.el6_8, tkinter-2.6.6-66.el6_8
- Red Hat Enterprise Linux Server Optional (v. 7) python-debug-2.7.5-38.el7_2, python-test-2.7.5-38.el7_2, python-tools-2.7.5-38.el7_2 +1
- Red Hat Enterprise Linux Workstation (v. 6) python-2.6.6-66.el6_8, python-devel-2.6.6-66.el6_8, python-libs-2.6.6-66.el6_8 +1
- Red Hat Enterprise Linux Workstation (v. 7) python-2.7.5-38.el7_2, python-devel-2.7.5-38.el7_2, python-libs-2.7.5-38.el7_2
- Red Hat Enterprise Linux Workstation Optional (v. 6) python-test-2.6.6-66.el6_8, python-tools-2.6.6-66.el6_8
- Red Hat Enterprise Linux Workstation Optional (v. 7) python-debug-2.7.5-38.el7_2, python-test-2.7.5-38.el7_2, python-tools-2.7.5-38.el7_2 +1
- RHSA-2016:1627 Released 2016-08-18 · Red Hat rating Moderaterh-python35-python security update
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-python35-python-3.5.1-9.el7, rh-python35-python-debug-3.5.1-9.el7, rh-python35-python-devel-3.5.1-9.el7 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) rh-python35-python-3.5.1-9.el7, rh-python35-python-debug-3.5.1-9.el7, rh-python35-python-devel-3.5.1-9.el7 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) rh-python35-python-3.5.1-9.el7, rh-python35-python-debug-3.5.1-9.el7, rh-python35-python-devel-3.5.1-9.el7 +4
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-python35-python-3.5.1-9.el7, rh-python35-python-debug-3.5.1-9.el7, rh-python35-python-devel-3.5.1-9.el7 +4
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 4 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 5 | Affected | No fix yet |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2016:1626 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2016:1626 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2016:1628, RHSA-2016:1629, RHSA-2016:1630 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2016:1627, RHSA-2016:1628, RHSA-2016:1629, RHSA-2016:1630 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) | Fixed | RHSA-2016:1628, RHSA-2016:1629, RHSA-2016:1630 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) | Fixed | RHSA-2016:1628, RHSA-2016:1629, RHSA-2016:1630 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.1) | Fixed | RHSA-2016:1627, RHSA-2016:1628, RHSA-2016:1629, RHSA-2016:1630 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.2) | Fixed | RHSA-2016:1627, RHSA-2016:1628, RHSA-2016:1629, RHSA-2016:1630 |
| Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2016:1628, RHSA-2016:1629, RHSA-2016:1630 |
| Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2016:1627, RHSA-2016:1628, RHSA-2016:1629, RHSA-2016:1630 |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-1000110
- 2026-10-03 Alias added: GHSA-97ww-5p4j-7pg9
References
Advisory 4
Sources
- CVE-2016-1000110 · CVE Program
- CVE-2016-1000110 · NVD
- FIRST EPSS
- GHSA-97ww-5p4j-7pg9 · GitHub Advisory Database · CC BY 4.0
- CVE-2016-1000110 · Red Hat security data · CC BY 4.0
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