It is suspected that this package is vulnerable to a security vulnerability due to expanding of malicious entities via dev-perl/XML-Twig. As such we ask maintainers with packages suspected to be vulnerable to verify if the package is (or have been) affected. Please see the information contained in the tracker bug 600818. # grep -Fr 'Twig->new' /var/tmp/portage/app-admin/system-tools-backends-2.10.2/work/system-tools-backends-2.10.2 /var/tmp/portage/app-admin/system-tools-backends-2.10.2/work/system-tools-backends-2.10.2/Net-DBus/lib/Net/DBus/Binding/Introspector.pm: my $twig = XML::Twig->new(); ...so this is due to embedded dev-lang/Net-DBus, see bug 600824 and consider to unbundle.