Inappropriate implementation in Background Fetch API in Google Chrome prior to 94.0.4606.54 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page.
https://www.debian.org/security/2022/dsa-5046
https://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop_21.html