When certain large form inputs appear on a web page, they can cause Opera to crash. In some cases, the crash can lead to memory corruption, which could be used to execute code. To inject code, additional techniques will have to be employed.
Opera Software has released Opera 11.01, where this issue has been fixed.
Thanks to Jordi Chancel for reporting this issue to Opera Software.
Need help? Hit F1 anytime while using Opera to access our online help files, or go here.