Out of bounds read in networking in Google Chrome prior to 87.0.4280.88 allowed a remote attacker who had compromised the renderer process to obtain potentially sensitive information from process memory via a crafted HTML page.
https://chromereleases.googleblog.com/2020/12/stable-channel-update-for-desktop.html
http://packetstormsecurity.com/files/161581/Chrome-DataElement-Out-Of-Bounds-Read.html