This is regarding security part of MongoDB.
I saw the documentation of MongoDB and found that it supports TLS 1.0 & 1.1.
May I know does MongoDB supports TLS 1.2 version or above?
Yes, it does, for a while now. It's mentioned here in a MongoDB blog post on May 21, 2014:
In order to protect the network traffic, SSL/TLS should be enabled between clients and the server and in between servers. MongoDB supports TLS 1.0, 1.1 and 1.2, all SSL versions are disabled. Enabling TLS is well described in the security documentation.
See Source on GitHub.