Scripting language vulnerability dubbed Httpoxy allows for MitM attacks on Red Hat products using Go and Python. It affects server-side web applications that run in Common Gateway Interface (CGI) or CGI-like environments, such as some FastCGI configurations, along with programing languages PHP, Python, and Go. The vulnerability is tied to a much earlier Perl bug discovered 15 years ago found by Randal L Schwartz in 2001. An adversary could launch a man-in-the-middle attack and redirect traffic to an arbitrary host.
Source: https://threatpost.com/cgi-script-vulnerability-httpoxy-allows-man-in-the-middle-attacks/119345/