CVE-2024-4030

On Windows a directory returned by tempfile.mkdtemp() would not always have
permissions set to restrict reading and writing to the temporary directory
by other users, instead usually inheriting the correct permissions from the
default location. Alternate configurations or users without a profile
directory may not have the intended permissions. If you’re not using
Windows or haven’t changed the temporary directory location then you aren’t
affected by this vulnerability. On other platforms the returned directory
is consistently readable and writable only by the current user. This issue
was caused by Python not supporting Unix permissions on Windows. The fix
adds support for Unix “700” for the mkdir function on Windows which is used
by mkdtemp() to ensure the newly created directory has the proper
permissions.

Bugs

• <https://github.com/python/cpython/issues/118486&gt;

Notes