CVE-2020-26137

Name	CVE-2020-26137
Description	urllib3 before 1.25.9 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 putrequest(). NOTE: this is similar to CVE-2020-26116.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severity	medium

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
python-urllib3 (PTS)	stretch	1.19.1-1	vulnerable
	buster	1.24.1-1	vulnerable
	bullseye, sid	1.26.2-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
python-urllib3	source	(unstable)	1.25.9-1

Notes

[buster] - python-urllib3 <no-dsa> (Minor issue)
[stretch] - python-urllib3 <no-dsa> (Minor issue)
https://bugs.python.org/issue39603
https://github.com/urllib3/urllib3/commit/1dd69c5c5982fae7c87a620d487c2ebf7a6b436b (1.25.9)
https://github.com/urllib3/urllib3/pull/1800