Google Chrome before 6.0.472.62 does not properly use information about the origin of a document to manage properties, which allows remote attackers to have an unspecified impact via a crafted web site, related to a "property pollution" issue.
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7313
http://googlechromereleases.blogspot.com/2010/09/stable-beta-channel-updates_17.html