core/loader/ImageLoader.cpp in Blink, as used in Google Chrome before 44.0.2403.89, does not properly determine the V8 context of a microtask, which allows remote attackers to bypass Content Security Policy (CSP) restrictions by providing an image from an unintended source.
Software security is not security software. Here we're concerned with topics like authentication, access control, confidentiality, cryptography, and privilege management.