[issue30458] [security][CVE-2019-9740][CVE-2019-9947] HTTP Header Injection (follow-up of CVE-2016-5699)

[STINNER Victor]

STINNER Victor <vstinner at redhat.com> added the comment:

> According to the following message, urllib3 is also vulnerable to HTTP Header Injection: (...)

And the issue has been reported to urllib3:
https://github.com/urllib3/urllib3/issues/1553

Copy of the first message:

"""
At https://bugs.python.org/issue36276 there's an issue in Python's urllib that an attacker controlling the request parameter can inject headers by injecting CR/LF chars.

A commenter mentions that the same bug is present in urllib3:
https://bugs.python.org/issue36276#msg337837

So reporting it here to make sure it gets attention.
"""

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