As can be seen on the page of monkeyd, versions prior to 8.2 are vulnerable to a DoS attack. Simply copying the ebuild from monkeyd-0.8.0.ebuild to monkeyd-0.8.2.ebuild and emerging the new ebuild works perfectly.
0.8.2 is now in cvs and the GLSA has been sent to plasmaroo for processing
GLSA is out: http://article.gmane.org/gmane.linux.gentoo.announce/286 Thanks!