The CGIHTTPServer module in Python 2.7.5 and 3.3.4 does not properly handle URLs in which…
Priority MEDIUM 63CWE-22Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 22 fixed, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
The CGIHTTPServer module in Python 2.7.5 and 3.3.4 does not properly handle URLs in which URL encoding is used for path separators, which allows remote attackers to read script source code or conduct directory traversal attacks and execute unintended code via a crafted character sequence, as demonstrated by a %2f separator.
Why it matters now
EPSS 0.23907 97th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 3 advisoriesRed Hat: 22 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 2.7.8; 3.2.0 to before 3.2.6; 3.3.0 to before 3.3.6; 3.4.0 to before 3.4.2 | Vulnerable | python-pillow |
| cpe:2.3:a:redhat:software_collections:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* | 5.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
- cpe:2.3:a:python:python:*:*:*:*:*:*:*:* Versions 2.7.0 to before 2.7.8; 3.2.0 to before 3.2.6; 3.3.0 to before 3.3.6; 3.4.0 to before 3.4.2 Vulnerable ·python-pillow
- cpe:2.3:a:redhat:software_collections:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
Remediation
Red Hat 3 advisories
- RHSA-2015:2101 Released 2015-11-19 · Red Hat rating Moderatepython security, bug fix, and enhancement update
- Red Hat Enterprise Linux Client (v. 7) python-2.7.5-34.el7, python-libs-2.7.5-34.el7
- Red Hat Enterprise Linux Client Optional (v. 7) python-debug-2.7.5-34.el7, python-devel-2.7.5-34.el7, python-test-2.7.5-34.el7 +2
- Red Hat Enterprise Linux ComputeNode (v. 7) python-2.7.5-34.el7, python-devel-2.7.5-34.el7, python-libs-2.7.5-34.el7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) python-debug-2.7.5-34.el7, python-test-2.7.5-34.el7, python-tools-2.7.5-34.el7 +1
- Red Hat Enterprise Linux Server (v. 7) python-2.7.5-34.el7, python-devel-2.7.5-34.el7, python-libs-2.7.5-34.el7 +1
- Red Hat Enterprise Linux Server Optional (v. 7) python-debug-2.7.5-34.el7, python-test-2.7.5-34.el7, python-tools-2.7.5-34.el7 +1
- Red Hat Enterprise Linux Workstation (v. 7) python-2.7.5-34.el7, python-devel-2.7.5-34.el7, python-libs-2.7.5-34.el7
- Red Hat Enterprise Linux Workstation Optional (v. 7) python-debug-2.7.5-34.el7, python-test-2.7.5-34.el7, python-tools-2.7.5-34.el7 +1
- RHSA-2015:1330 Released 2015-07-20 · Red Hat rating Moderatepython security, bug fix, and enhancement update
- Red Hat Enterprise Linux Desktop (v. 6) python-2.6.6-64.el6, python-libs-2.6.6-64.el6, tkinter-2.6.6-64.el6
- Red Hat Enterprise Linux Desktop Optional (v. 6) python-devel-2.6.6-64.el6, python-test-2.6.6-64.el6, python-tools-2.6.6-64.el6
- Red Hat Enterprise Linux HPC Node (v. 6) python-2.6.6-64.el6, python-devel-2.6.6-64.el6, python-libs-2.6.6-64.el6
- Red Hat Enterprise Linux HPC Node Optional (v. 6) python-test-2.6.6-64.el6, python-tools-2.6.6-64.el6, tkinter-2.6.6-64.el6
- Red Hat Enterprise Linux Server (v. 6) python-2.6.6-64.el6, python-devel-2.6.6-64.el6, python-devel-2.6.6-64.el6.ppc +3
- Red Hat Enterprise Linux Server Optional (v. 6) python-test-2.6.6-64.el6, python-tools-2.6.6-64.el6, tkinter-2.6.6-64.el6
- Red Hat Enterprise Linux Workstation (v. 6) python-2.6.6-64.el6, python-devel-2.6.6-64.el6, python-libs-2.6.6-64.el6 +1
- Red Hat Enterprise Linux Workstation Optional (v. 6) python-test-2.6.6-64.el6, python-tools-2.6.6-64.el6
- RHSA-2015:1064 Released 2015-06-04 · Red Hat rating Moderatepython27 security, bug fix, and enhancement update
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) python27-1.1-17.el6, python27-python-2.7.8-3.el6, python27-python-debug-2.7.8-3.el6 +11
- Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) python27-1.1-20.el7, python27-python-2.7.8-3.el7, python27-python-debug-2.7.8-3.el7 +11
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.5) python27-1.1-17.el6, python27-python-2.7.8-3.el6, python27-python-debug-2.7.8-3.el6 +11
- Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) python27-1.1-17.el6, python27-python-2.7.8-3.el6, python27-python-debug-2.7.8-3.el6 +11
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) python27-1.1-17.el6, python27-python-2.7.8-3.el6, python27-python-debug-2.7.8-3.el6 +11
- Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) python27-1.1-20.el7, python27-python-2.7.8-3.el7, python27-python-debug-2.7.8-3.el7 +11
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Software Collections | Affected | No fix yet |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2015:2101 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2015:2101 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2015:2101 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2015:2101 |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2015:1330 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2015:1330 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2015:1330 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2015:1330 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2015:1330 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2015:2101 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2015:1330 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2015:2101 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2015:1330 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2015:2101 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2015:1330 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2015:2101 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2015:1064 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2015:1064 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.5) | Fixed | RHSA-2015:1064 |
| Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.6) | Fixed | RHSA-2015:1064 |
| Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2015:1064 |
| Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2015:1064 |
Not affected: 1 product
- Red Hat Software Collections
Timeline
- 2026-10-02 Threatist record created from CVE-2014-4650
- 2026-10-03 Alias added: GHSA-33c8-ggqv-8g5p
References
Sources
- CVE-2014-4650 · CVE Program
- CVE-2014-4650 · NVD
- FIRST EPSS
- GHSA-33c8-ggqv-8g5p · GitHub Advisory Database · CC BY 4.0
- CVE-2014-4650 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences