Python Improper Encoding or Escaping of Output Vulnerability - CVE-2020-26116
http.client in Python 3.x before 3.5.10 3.6.x before 3.6.12 3.7.x before 3.7.9 and 3.8.x before 3.8.5 allows CRLF injection if the attacker controls the HTTP request method as demonstrated by inserting CR and LF control characters in the first argument of HTTPConnection.request.