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Google Chrome Service Worker Policy Enforcement Vulnerability Allowing Cross-Origin Data Leakage

Vulnerability

A vulnerability exists in Google Chrome's Service Worker component, in versions prior to 148.0.7778.179. This issue stems from inadequate policy enforcement, which allowed remote attackers to leak cross-origin data by using a specially crafted HTML page.

Impact

Exploitation of this vulnerability could lead to unauthorized access to cross-origin data, potentially allowing attackers to intercept or manipulate information between different origins.

Remediation

Users can update to Google Chrome version 148.0.7778.179 or later to address this vulnerability.

Added: May 20, 2026, 8:35 PM
Updated: May 20, 2026, 8:35 PM

Vulnerability Rating

Custom Algorithm
spread
8.4
impact
0.6
exploitability
4.2
remediation
7.7
relevance
8.6
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.