CVE-2025-8581: Google Chrome

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Inappropriate implementation in Extensions in Google Chrome prior to 139.0.7258.66 allowed a remote attacker who convinced a user to engage in specific UI gestures to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)

Affected products

• Google Chrome: before 139.0.7258.66 (fixed in 139.0.7258.66)

Published 2025-08-07. Last modified 2026-06-17.