x11-wm/
xpra

X Persistent Remote Apps (xpra) and Partitioning WM (parti) based on wimpiggy

http://xpra.org/

There are no open security bugs.

You think something is missing here?
Start with filling a new security bug.

Please file new vulnerability reports on Gentoo Bugzilla and assign them to the Gentoo Security product and Vulnerabilities component.