Google publishes exploit code threatening millions of Chromium users

Google published exploit code for an unfixed vulnerability in its Chromium browser codebase that threatens millions of people using Chrome, Microsoft Edge, and other Chromium-based browsers. The proof-of-concept code exploits the Browser Fetch programming interface to allow attackers to monitor browser usage and launch denial-of-service attacks. The unfixed vulnerability can be exploited by any website a user visits.

Source: Ars Technica | 2026-05-20