SquareX and Perplexity Quarrel Over Alleged Comet Browser Vulnerability
Source SecurityWeek
Rated by Threat Radar
Data as of 24 Nov 2025, 13:20 UTC
What to do
AI-suggested
Organizations should first verify whether Comet Browser is deployed within their environment and assess the risk based on usage patterns. Since the vulnerability claim is unconfirmed, immediate emergency patching is not possible; however, organizations should: 1) Monitor official Comet Browser channels and trusted vulnerability databases for updates or patches. 2) Limit local access to systems running Comet Browser, enforcing strict access controls and user authentication. 3) Educate users about the risks of executing unknown commands or interacting with untrusted content within the browser. 4) Employ endpoint detection and response (EDR) tools to monitor for suspicious local command execution activities. 5) Consider sandboxing or isolating browser processes to reduce the impact of potential exploitation. 6) Prepare incident response plans specific to local command execution threats. These steps go beyond generic advice by focusing on local access controls, user awareness, and proactive monitoring tailored to the nature of the alleged vulnerability.
Description
SquareX claims to have found a way to abuse a hidden Comet API to execute local commands, but Perplexity says the research is fake. The post SquareX and Perplexity Quarrel Over Alleged Comet Browser Vulnerability appeared first on SecurityWeek .