Use after free in PDFium in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted PDF file.
https://www.debian.org/security/2021/dsa-4824
https://security.gentoo.org/glsa/202101-30
https://chromereleases.googleblog.com/2020/10/stable-channel-update-for-desktop_20.html
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00016.html