Description of problem:
The current version 2.12.5 is to old for the python vault module.
The old one looks like vulnerable:
Version-Release number of selected component (if applicable):
This package is part of RHEL, so would not be considered for EPEL.
If you wish to file an update request against RHEL, you can, but I doubt at this stage in the EL7 cycle an update like this would be done.