Gentoo has issued an update for opera. This fixes some vulnerabilities, which can be exploited by malicious people to disclose system and potentially sensitive information, conduct spoofing and cross-site scripting attacks, bypass certain security restrictions, and potentially compromise a user's system.

For more information:
SA31549
SA32177
SA32299
SA32452

Solution
Update to "www-client/opera-9.62" or later.
Original Advisory
GLSA-200811-01:
http://www.gentoo.org/security/en/glsa/glsa-200811-01.xml

Other references
Further details available to Secunia VIM customers

Deep Links
Links available to Secunia VIM customers