Use after free in task scheduling in Google Chrome prior to 81.0.4044.129 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
https://www.debian.org/security/2020/dsa-4714
https://security.gentoo.org/glsa/202005-13
https://chromereleases.googleblog.com/2020/04/stable-channel-update-for-desktop_27.html