CVE-2026-87570
Incorrect authorization in SiteIsolation in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to bypass site isolation via a crafted file. (Chromium security severity: Medium)
- Published Sep 9, 2026
- CVSS 8.8 high
- 0.3% chance of exploitation in the next 30 days (EPSS)
- A fix is available