The resolve_redirects function in sessions.py in requests 2.1.0 through 2.5.3 allows remote attackers to conduct session fixation attacks via a cookie without a host value in a redirect.
- http://www.ubuntu.com/usn/USN-2531-1
- https://github.com/ARPSyndicate/cvemon
- https://github.com/vanschelven/fpvs