CVE-2026-7978: Google Chrome

High severity, CVSS 8.1. EPSS: 0.3% chance of exploitation in the next 30 days.

Inappropriate implementation in Companion in Google Chrome on Mac prior to 148.0.7778.96 allowed a remote attacker to perform OS-level privilege escalation via malicious network traffic. (Chromium security severity: Medium)

Affected products

• Google Chrome: before 148.0.7778.96 (fixed in 148.0.7778.96)

Published 2026-05-06. Last modified 2026-06-17.