1. ===========================

  2. Django 3.0.10 release notes

  3. ===========================

  4. 

  5. *September 1, 2020*

  6. 

  7. Django 3.0.10 fixes two security issues and two data loss bugs in 3.0.9.

  8. 

  9. CVE-2020-24583: Incorrect permissions on intermediate-level directories on Python 3.7+

  10. ======================================================================================

  11. 

  12. On Python 3.7+, :setting:`FILE_UPLOAD_DIRECTORY_PERMISSIONS` mode was not

  13. applied to intermediate-level directories created in the process of uploading

  14. files and to intermediate-level collected static directories when using the

  15. :djadmin:`collectstatic` management command.

  16. 

  17. You should review and manually fix permissions on existing intermediate-level

  18. directories.

  19. 

  20. CVE-2020-24584: Permission escalation in intermediate-level directories of the file system cache on Python 3.7+

  21. ===============================================================================================================

  22. 

  23. On Python 3.7+, the intermediate-level directories of the file system cache had

  24. the system's standard umask rather than ``0o077`` (no group or others

  25. permissions).

  26. 

  27. Bugfixes

  28. ========

  29. 

  30. * Fixed a data loss possibility in the

  31.   :meth:`~django.db.models.query.QuerySet.select_for_update()`. When using

  32.   related fields pointing to a proxy model in the ``of`` argument, the

  33.   corresponding model was not locked (:ticket:`31866`).

  34. 

  35. * Fixed a data loss possibility, following a regression in Django 2.0, when

  36.   copying model instances with a cached fields value (:ticket:`31863`).
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