CVE-2026-12457

Inappropriate implementation in Extensions in Google Chrome prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted HTML page. (Chromium security severity: High)

• chromium 149.0.7827.155-1 [bullseye] - chromium (see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1061268)