issue2550925 strip HTTP_PROXY environment variable if deployed as CGI and client sends an http PROXY header, the tainted HTTP_PROXY environment variable is created. It can affect calls using requests package or curl. A roundup admin would have to write detectors/extensions that use these mechanisms. Not exploitable in default config. See: https://httpoxy.org/

#!/usr/bin/env python
from __future__ import print_function
import zlib, base64, sys
print(base64.encodestring(zlib.compress(sys.stdin.read())))