CVE-2019-9636

Python 2.7.x through 2.7.16 and 3.x through 3.7.2 is affected by: Improper
Handling of Unicode Encoding (with an incorrect netloc) during NFKC
normalization. The impact is: Information disclosure (credentials, cookies,
etc. that are cached against a given hostname). The components are:
urllib.parse.urlsplit, urllib.parse.urlparse. The attack vector is: A
specially crafted URL could be incorrectly parsed to locate cookies or
authentication data and send that information to a different host than when
parsed correctly. This is fixed in: v2.7.17, v2.7.17rc1, v2.7.18,
v2.7.18rc1; v3.5.10, v3.5.10rc1, v3.5.7, v3.5.8, v3.5.8rc1, v3.5.8rc2,
v3.5.9; v3.6.10, v3.6.10rc1, v3.6.11, v3.6.11rc1, v3.6.12, v3.6.9,
v3.6.9rc1; v3.7.3, v3.7.3rc1, v3.7.4, v3.7.4rc1, v3.7.4rc2, v3.7.5,
v3.7.5rc1, v3.7.6, v3.7.6rc1, v3.7.7, v3.7.7rc1, v3.7.8, v3.7.8rc1, v3.7.9.

Bugs

• <https://bugs.python.org/issue36216&gt;