CVE-2026-93378: Google Chrome

Low severity, CVSS 3.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Missing authorization in Storage in Google Chrome prior to 153.0.8010.52 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted PDF file. (Chromium security severity: Medium)

Affected products

• Google Chrome: before 153.0.8010.52 (fixed in 153.0.8010.52)

Published 2026-09-17. Last modified 2026-09-21.