https://www.bleepingcomputer.com/news/security/google-chrome-85-fixes-webgl-code-execution-vulnerability/

Google addressed a use-after-free bug in the WebGL (Web Graphics Library) component of the Google Chrome web browser that could lead to arbitrary code execution in the context of the browser's process following successful exploitation.

WebGL is a JavaScript API used by compatible browsers to render interactive 2D and 3D graphics without using plug-ins.