Google Chrome Extensions Insufficient Input Validation Vulnerability Bypassing Site Isolation

Vulnerability

A vulnerability exists in Google Chrome Extensions prior to 149.0.7827.103, allowing a remote attacker who has compromised the renderer process to bypass site isolation. This is achieved through insufficient validation of untrusted input, which can be exploited via a crafted HTML page.

Impact

Exploitation of this vulnerability allows for a bypass of site isolation, potentially leading to unauthorized access or manipulation of web content.

Remediation

Users can update to Google Chrome version 149.0.7827.103 or later to address this vulnerability.

Added: Jun 9, 2026, 12:55 AM
Updated: Jun 9, 2026, 12:55 AM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
5.0
exploitability
2.3
remediation
7.7
relevance
9.4
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.