Description
Twisted before 16.3.1 does not attempt to address RFC 3875 section 4.1.18 namespace conflicts and therefore does not protect CGI applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect a CGI application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue.
References (4)
Scores
CVSS v3
5.3
EPSS
0.0058
EPSS Percentile
69.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Details
CWE
CWE-425
Status
published
Products (2)
pypi/Twisted
0 - 16.3.1PyPI
twisted/twisted
< 16.3.1
Published
Mar 11, 2020
Tracked Since
Feb 18, 2026