Vulnerability Details CVE-2026-78953
Missing authorization in SiteIsolation in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted PDF file. (Chromium security severity: Medium)
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 27.5%
CVSS Severity
CVSS v3 Score 3.1