/usr/lib/bacula/libbaccats.so is in bacula-common-mysql 5.2.6+dfsg-9.3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/bacula/libbaccats-5.2.6.so
/usr/lib/bacula/libbaccats-5.2.6.so