CVE-2016-1000110

6.1 MEDIUM 5% exploit odds No fix listed

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in, but needs a user to act. Limited direct impact.
Exploit odds: 4.5% chance of exploitation in the next 30 days (EPSS).
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2019-11-27 17:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 00:38 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 4.5% in the next 30 days (EPSS).
Severity: 6.1 MEDIUM (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2019-11-27 17:15 UTC
Last modified: 2026-06-17 00:38 UTC
Exploit probability: 4.5% · EPSS, next 30 days
Weakness: CWE-601
Record status: Modified

Affected

Python < 2.7.13
Python < 3.3.7
Python < 3.4.6
Python < 3.5.3
Debian Linux 8.0
Debian Linux 9.0
Debian Linux 10.0
Fedoraproject Fedora 23

Attack profile CVSS 3.1 · 6.1

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required
Scope: Changed
Confidentiality: Low
Integrity: Low
Availability: None

Raw vector

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

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2016-1000110.md and follow it. Check whether this project is affected by CVE-2016-1000110. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record