Insufficient policy enforcement in extensions in Google Chrome prior to 80.0.3987.149 allowed an attacker who convinced a user to install a malicious extension to bypass site isolation via a crafted Chrome Extension.
https://www.debian.org/security/2020/dsa-4645
https://security.gentoo.org/glsa/202003-53
https://chromereleases.googleblog.com/2020/03/stable-channel-update-for-desktop_18.html
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00037.html