Insufficient policy validation in extensions in Google Chrome prior to 85.0.4183.121 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension.
https://www.debian.org/security/2021/dsa-4824
https://security.gentoo.org/glsa/202101-30
https://security.gentoo.org/glsa/202009-13
https://chromereleases.googleblog.com/2020/09/stable-channel-update-for-desktop_21.html
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00049.html
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00096.html
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00095.html
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00087.html