Safari 3.1.1 Addresses Security Issues
A flaw where a colon character in a maliciously crafted URL could lead to a cross-site scripting attack has also been repaired. Two other fixes are specific to the Windows version of Safari: a timing issue that opened up control of the address bar and a memory corruption issue.
Safari 3.1.1 is available via Software Update or as a 39 MB download. It requires Mac OS X 10.4.11 or Mac OS X 10.5.2, or Windows XP or Vista on the PC.