Hi Bruno,

I'm not aware of any known issues. We are running the following version ourselves in production:

I can't give you 100% guarantee but would be very surprised that RHEL 7 would pose specific issues.

Apache Cassandra themselves claim to be compatible with a wide array of Linux distributions, see:
https://cassandra.apache.org/doc/latest/cassandra/getting_started/installing.html

Hope this helps.