UNITY HAS FOUND A SECURITY VULNERABILITY THAT HAS SAT DORMANT FOR ALMOST A DECADE: ‘TAKE IMMEDIATE ACTION TO PROTECT YOUR GAMES & APPS'

Summary from the TLDR InfoSec newsletter

Unity warns developers about a vulnerability identified since version 2017.1 that exposes users to unsafe file loading and local file inclusion attacks, varying by OS. Developers need to either recompile and redistribute their apps to fix this issue or use a patching tool that applies updates without recompilation. However, this tool does not support Linux builds or applications with tamper-proofing or anti-cheat features enabled.