pytest 6.2.3 (2021-04-03)

Bug Fixes

• #8414: pytest used to create directories under /tmp with world-readable
  permissions. This means that any user in the system was able to read
  information written by tests in temporary directories (such as those created by
  the tmp_path/tmpdir fixture). Now the directories are created with
  private permissions.

  pytest used silenty use a pre-existing /tmp/pytest-of-<username> directory,
  even if owned by another user. This means another user could pre-create such a
  directory and gain control of another user's temporary directory. Now such a
  condition results in an error.