CVE-2016-1000110: Debian Linux

Medium severity, CVSS 6.1. EPSS: 4.5% chance of exploitation in the next 30 days.

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.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only; version 10.0 only
• Fedoraproject Fedora: version 23 only
• Python Python: from 2.7.0, before 2.7.13 (fixed in 2.7.13); from 3.3.0, before 3.3.7 (fixed in 3.3.7); from 3.4.0, before 3.4.6 (fixed in 3.4.6); from 3.5.0, before 3.5.3 (fixed in 3.5.3)

Published 2019-11-27. Last modified 2026-06-17.