Blink, as used in Google Chrome before 50.0.2661.94, does not ensure that frames satisfy a check for the same renderer process in addition to a Same Origin Policy check, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a crafted web site, related to BindingSecurity.cpp and DOMWindow.cpp.
Severity
CVSS 3.0
8.0 high
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
EPSS
1.2% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)