ansible - Vault password leak from temporary file

Borja Tarraso reports:

A flaw was found in Ansible Engine when using Ansible Vault for editing
encrypted files. When a user executes “ansible-vault edit”, another user
on the same computer can read the old and new secret, as it is created in
a temporary file with mkstemp and the returned file descriptor is closed
and the method write_data is called to write the existing secret in the
file. This method will delete the file before recreating it insecurely.
All versions in 2.7.x, 2.8.x and 2.9.x branches are believed to be vulnerable.