Apple has released a round of patches for OSX and other software.
The patch for OSX includes covers more than 24 issues including one in Safari's RSS feed that can allow for arbitrary code execution. Another patch corrects a problem in Apple's remote events that could allow access to sensitive information. One interesting one was a flaw in the printing system that could allow a user to gain system level access and one in DS tools that could expose passwords.
If you own a Mac or run Safari for Windows you might want to head over to Apple's update site and grab these.