WebCore/bindings/v8/custom/V8DOMWindowCustom.cpp in WebKit before r52401, as used in Google Chrome before 4.0.249.78, allows remote attackers to bypass the Same Origin Policy via vectors involving the window.open method.

Multiple integer overflows in Skia, as used in Google Chrome before 4.0.249.78, allow remote attackers to execute arbitrary code in the Chrome sandbox or cause a denial of service (memory corruption and application crash) via vectors involving CANVAS elements.

Integer overflow in the CrossCallParamsEx::CreateFromBuffer function in sandbox/src/crosscall_server.cc in Google Chrome before 4.0.249.89 allows attackers to leverage renderer access to cause a denial of service (heap memory corruption) or possibly have unspecified other impact via a malformed message, related to deserializing of sandbox messages.

browser/login/login_prompt.cc in Google Chrome before 4.0.249.89 populates an authentication dialog with credentials that were stored by Password Manager for a different web site, which allows user-assisted remote HTTP servers to obtain sensitive information via a URL that requires authentication, as demonstrated by a URL in the SRC attribute of an IMG element.

WebKit before r53607, as used in Google Chrome before 4.0.249.89, allows remote attackers to discover a redirect's target URL, for the session of a specific user of a web site, by placing the site's URL in the HREF attribute of a stylesheet LINK element, and then reading the document.styleSheets[0].href property value, related to an IFRAME element.