CVE-2026-9903
Severity CVSS v4.0:
Pending analysis
Type:
CWE-20
Input Validation
Publication date:
28/05/2026
Last modified:
29/05/2026
Description
Insufficient validation of untrusted input in Site Isolation in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted MHTML page. (Chromium security severity: High)