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Date: Fri, 7 Sep 2012 07:50:26 -0400 (EDT)
From: Jan Lieskovsky <>
Cc: "Steven M. Christey" <>,
        Andrey Petrov <>,
        Jamie Strandboge <>
Subject: CVE Request -- urllib3: Does not check for SSL certificates by

Hello Kurt, Steve, vendors,

  it was reported that urllib3, a Python HTTP library
with thread-safe connection pooling and file post support,
did not perform SSL certificates verification by default.
A rogue HTTP server could use this flaw to conduct
man-in-the-middle (MITM) attacks.

    (the bug actually has python-requests in the summary,
     but only due the fact it contains embedded urllib3)

Patch applied by the Ubuntu Linux distribution:


Could you allocate a CVE id for this?

Thank you && Regards, Jan.
Jan iankko Lieskovsky / Red Hat Security Response Team

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