Versions 5.7.1 and 5.6.2 from qtmultimedia contain optional dependencies with media-libs/gstreamer slot 0.10 which is a vulnerable package. For more info refer to bug 550648
This will already be dropped from 5.9.x, but we can remove it from earlier versions too if it's blocking gstreamer:0.10 removal.
> we can remove it from earlier versions too if it's blocking gstreamer:0.10 removal. yeah let's do that.
Done in git commit 0177fe5fe8373963abbd1dfaa4156101bbce0646