This update for python39 fixes the following issues: Security fixes: - CVE-2022-42919: Fixed local privilege escalation via the multiprocessing forkserver start method . - CVE-2022-45061: Fixed a quadratic IDNA decoding time . Other fixes: - Allow building of documentation with the latest Sphinx 5.3.0 . - Update to 3.9.15: - Fix multiplying a list by an integer : detect the integer overflow when the new allocated length is close to the maximum size. - Fix a shell code injection vulnerability in the get-remote-certificate.py example script. The script no longer uses a shell to run openssl commands. - Fix command line parsing: reject -X int_max_str_digits option with no value when the PYTHONINTMAXSTRDIGITS environment variable is set to a valid limit. - When ValueError is raised if an integer is larger than the limit, mention the sys.set_int_max_str_digits function in the error message. - Update bundled libexpat to 2.4.9