Missing authorization in ReadingMode in Google Chrome prior to 155.0.8059.79 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to potentially bypass site isolation via a crafted HTML page. (Chromium security severity: High)
https://issues.chromium.org/issues/552510359
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-100634
https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_01668083673.html