/usr/share/php/Horde/ is in php-horde-kolab-session 2.0.1-4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/Horde/Kolab/
/usr/share/php/Horde/Kolab/Session/
/usr/share/php/Horde/Kolab/Session.php
/usr/share/php/Horde/Kolab/Session/Abstract.php
/usr/share/php/Horde/Kolab/Session/Base.php
/usr/share/php/Horde/Kolab/Session/Decorator/
/usr/share/php/Horde/Kolab/Session/Decorator/Anonymous.php
/usr/share/php/Horde/Kolab/Session/Decorator/Base.php
/usr/share/php/Horde/Kolab/Session/Decorator/Logged.php
/usr/share/php/Horde/Kolab/Session/Decorator/Stored.php
/usr/share/php/Horde/Kolab/Session/Exception/
/usr/share/php/Horde/Kolab/Session/Exception.php
/usr/share/php/Horde/Kolab/Session/Exception/Badlogin.php
/usr/share/php/Horde/Kolab/Session/Factory/
/usr/share/php/Horde/Kolab/Session/Factory/Imap.php
/usr/share/php/Horde/Kolab/Session/Imap.php
/usr/share/php/Horde/Kolab/Session/Storage/
/usr/share/php/Horde/Kolab/Session/Storage.php
/usr/share/php/Horde/Kolab/Session/Storage/Mock.php
/usr/share/php/Horde/Kolab/Session/Storage/Session.php
/usr/share/php/Horde/Kolab/Session/Valid/
/usr/share/php/Horde/Kolab/Session/Valid.php
/usr/share/php/Horde/Kolab/Session/Valid/Base.php
/usr/share/php/Horde/Kolab/Session/Valid/Decorator/
/usr/share/php/Horde/Kolab/Session/Valid/Decorator/Logged.php