CVE-2014-4650

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-17. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Weaponized
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 25%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EPSS
97.6%
KEV
Not listed

Published

February 20, 2020

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated May 27, 2026
Patch available. Sources: redhat.
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/cve-2014-4650
generic

oss-security - Re: CVE ID Request for Python CGIHTTPServer File Disclosure

http://openwall.com/lists/oss-security/2014/06/26/3
generic

Issue 21766: CGIHTTPServer File Disclosure - Python tracker

http://bugs.python.org/issue21766

Vendor Advisories for CVE-2014-4650(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupython3.4-minimal (3.4.2-1ubuntu0.1) @ utopic2026-05-27ubuntu
redhatpython-0:2.7.5-34.el72015-11-19redhat
redhatpython-0:2.6.6-64.el62015-07-20redhat
redhatpython27-python-wheel-0:0.24.0-2.el72015-06-04redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 40× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-13 06:08 UTCEPSS rescore
  2. 2026-07-12 05:42 UTCEPSS rescore
  3. 2026-07-12 05:42 UTCEPSS rescore
  4. 2026-07-11 08:23 UTCEPSS rescore
  5. 2026-07-09 19:05 UTCEPSS rescore
  6. 2026-07-08 15:10 UTCEPSS rescore
  7. 2026-07-07 13:42 UTCEPSS rescore
  8. 2026-07-06 02:20 UTCEPSS rescore
  9. 2026-07-05 02:26 UTCEPSS rescore
  10. 2026-07-04 06:27 UTCEPSS rescore
  11. 2026-07-02 08:47 UTCOSV refresh
  12. 2026-07-01 15:02 UTCEPSS rescore
  13. 2026-07-01 15:02 UTCEPSS rescore
  14. 2026-06-30 23:19 UTCEPSS rescore
  15. 2026-06-30 23:19 UTCEPSS rescore
  16. 2026-06-29 14:02 UTCEPSS rescore
  17. 2026-06-28 14:03 UTCEPSS rescore
  18. 2026-06-28 04:53 UTCEPSS rescore
  19. 2026-06-28 04:53 UTCEPSS rescore
  20. 2026-06-27 03:05 UTCEPSS rescore
  21. 2026-06-25 13:47 UTCEPSS rescore
  22. 2026-06-25 13:47 UTCEPSS rescore
  23. 2026-06-24 14:02 UTCEPSS rescore
  24. 2026-06-24 14:02 UTCEPSS rescore
  25. 2026-06-23 21:30 UTCEPSS rescore
Show 46 more
  1. 2026-06-23 21:30 UTCEPSS rescore
  2. 2026-06-22 14:22 UTCEPSS rescore
  3. 2026-06-22 14:22 UTCEPSS rescore
  4. 2026-06-21 01:57 UTCEPSS rescore
  5. 2026-06-19 19:23 UTCEPSS rescore
  6. 2026-06-18 17:49 UTCEPSS rescore
  7. 2026-06-18 17:49 UTCEPSS rescore
  8. 2026-06-17 17:49 UTCEPSS rescore
  9. 2026-06-17 17:49 UTCEPSS rescore
  10. 2026-06-16 17:50 UTCEPSS rescore
  11. 2026-06-16 17:49 UTCEPSS rescore
  12. 2026-06-16 17:49 UTCEPSS rescore
  13. 2026-06-14 23:14 UTCEPSS rescore
  14. 2026-06-14 08:13 UTCOSV refresh
  15. 2026-06-13 22:57 UTCEPSS rescore
  16. 2026-06-12 23:08 UTCEPSS rescore
  17. 2026-06-11 13:57 UTCEPSS rescore
  18. 2026-06-10 22:15 UTCEPSS rescore
  19. 2026-06-08 14:14 UTCEPSS rescore
  20. 2026-06-07 15:22 UTCEPSS rescore
  21. 2026-06-06 13:45 UTCEPSS rescore
  22. 2026-06-06 13:45 UTCEPSS rescore
  23. 2026-06-05 22:44 UTCEPSS rescore
  24. 2026-06-04 13:09 UTCEPSS rescore
  25. 2026-06-04 13:09 UTCEPSS rescore
  26. 2026-06-02 20:10 UTCEPSS rescore
  27. 2026-06-02 20:10 UTCEPSS rescore
  28. 2026-06-01 13:49 UTCEPSS rescore
  29. 2026-06-01 13:49 UTCEPSS rescore
  30. 2026-05-31 22:28 UTCEPSS rescore
  31. 2026-05-31 22:28 UTCEPSS rescore
  32. 2026-05-31 00:14 UTCEPSS rescore
  33. 2026-05-31 00:14 UTCEPSS rescore
  34. 2026-05-29 13:41 UTCEPSS rescore
  35. 2026-05-28 13:42 UTCEPSS rescore
  36. 2026-05-28 13:42 UTCEPSS rescore
  37. 2026-05-28 13:42 UTCEPSS rescore
  38. 2026-05-27 13:38 UTCEPSS rescore
  39. 2026-05-27 13:38 UTCEPSS rescore
  40. 2026-05-27 07:24 UTCEG score recompute
  41. 2026-05-27 07:24 UTCVendor advisory
  42. 2026-05-27 07:24 UTCGHSA enrichment
  43. 2026-05-26 13:41 UTCEPSS rescore
  44. 2026-05-26 07:16 UTCEPSS rescore
  45. 2026-05-24 16:43 UTCEPSS rescore
  46. 2026-05-24 00:15 UTCOSV refresh

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Exploit-DBEDB-33894✓ verified
    First seen Jun 27, 2014

    Python CGIHTTPServer - Encoded Directory Traversal

    Open source ↗

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2014-4650?
CVE-2014-4650 is a critical vulnerability published on February 20, 2020. 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…
When was CVE-2014-4650 disclosed?
CVE-2014-4650 was first published in the National Vulnerability Database on February 20, 2020, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2014-4650 actively exploited?
CVE-2014-4650 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 97.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2014-4650?
CVE-2014-4650 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2014-4650?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2014-4650, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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