The port is still marked as being broken with security/openssl111 but i can sucessfully build it now:
I also confirmed now it builds.
A commit references this bug:
Date: Wed Nov 14 15:02:24 UTC 2018
New revision: 484928
net/qt5-network: remove BROKEN
not it builds with OpenSSL 1.1.1.
Reported by: Sascha Holzleiter <firstname.lastname@example.org>
Approved by: mentors (implicit)