Google Chrome Extensions Policy Bypass Vulnerability Allowing Cross-Origin Data Leakage

Vulnerability

A policy bypass vulnerability has been identified in the Extensions component of Google Chrome, affecting versions prior to 142.0.7444.59. This vulnerability allows an attacker to leak cross-origin data by convincing a user to install a malicious extension.

Impact

Exploitation of this vulnerability could lead to unauthorized access to cross-origin data, potentially allowing attackers to gather sensitive information from other domains.

Remediation

Users can update to Google Chrome version 142.0.7444.59 or later to address this vulnerability.

Added: Nov 10, 2025, 8:28 PM
Updated: Nov 10, 2025, 8:28 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
2.5
exploitability
4.4
remediation
7.7
relevance
0.9
threat
0.0
urgency
2.9
incentive
0.8

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