Inappropriate implementation in service workers in Google Chrome prior to 96.0.4664.45 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page.
CWE-265 - Privilege Issues
Weaknesses in this category occur with improper handling, assignment, or management of privileges. A privilege is a property of an agent, such as a user. It lets the agent do things that are not ordinarily allowed. For example, there are privileges which allow an agent to perform maintenance functions such as restart a computer.