This is just what I told you to be wary of when I posted about the Safari release.
The flaws found have been rated "highly critical" by Secunia and could allow takeover of a PC. More information will be available soon, I am sure. For right now, I'd uninstall Safari and wait for those who like doing such things to test it and then for Apple to fix any flaws.
And shame on Apple for pushing this on unsuspecting users.