CVE intelligence

CVE-2026-19166

Vulnerability intelligence

Published Aug 6, 2026Sources checked Sep 12, 2026

9.6CRITICALCVSS out of 10

What this means

Review the available evidence

CVE-2026-19166 and is rated Critical severity with a CVSS score of 9.6. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.4%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-19166?

Use after free in Web Authentication in Google Chrome prior to 151.0.7922.109 allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)