Google has updated Chrome to version 91.0.4472.164 to fix the vulnerabilities. It concerns the browser for Windows, Mac and Linux, which is automatically updated after a restart of the browser.
It concerns a Type Confusion vulnerability, but the company has not yet provided more details. However, Sergei Glazunov of Google Project Zero also discovered a Type Confusion vulnerability in Chrome a month earlier, which is a different leak. Google will reveal more details once a majority of users have updated their browsers, the company promises .