Apple plugs Java security holes with updates for OS X 10.5 and 10.6
Check Software Update! Apple has released a couple of Java updates for OS X 10.5 and OS X 10.6. These updates will install Java version 1.6.0_20 on Mac OS X Leopard and Snow Leopard, and will install Java version 1.5.0_24 on OS X 10.5. The updates will also fix a couple of security holes that allow arbitrary code to be executed by Java applets.
http://reviews.cnet.com/8301-13727_7-20005313-263.html?part=rss&tag=feed&subj=MacFixIt