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[3.9] gh-118486: Support mkdir(mode=0o700) on Windows (GH-118488) (GH-118741)

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Co-authored-by: Łukasz Langa <lukasz@langa.pl>
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Steve Dower 2024-05-24 18:27:01 +01:00 • committed by GitHub
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:func:`os.mkdir` on Windows now accepts *mode* of ``0o700`` to restrict
the new directory to the current user. This fixes CVE-2024-4030
affecting :func:`tempfile.mkdtemp` in scenarios where the base temporary
directory is more permissive than the default.