CVE-2026-19166: Use After Free
Published Aug 6, 2026
·Updated
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)
Affected Software
1 affected component
Google Chrome<151.0.7922.109
Event History
Aug 6, 2026
CVE Published
via MITRE·08:33 PM
Data Sourced
via MITRE·08:33 PM
DescriptionWeakness
Data Sourced
via NVD·10:16 PM
DescriptionWeakness
Frequently Asked Questions
1
What is the severity of CVE-2026-19166?
CVE-2026-19166 has a severity rating of High according to Chromium's security assessment.
2
How do I fix CVE-2026-19166?
To fix CVE-2026-19166, update Google Chrome to version 151.0.7922.109 or later.
3
What causes CVE-2026-19166?
CVE-2026-19166 is caused by a use after free vulnerability in Web Authentication in Google Chrome.
4
Who is affected by CVE-2026-19166?
Users of Google Chrome versions prior to 151.0.7922.109 are affected by CVE-2026-19166.
5
What are the potential consequences of CVE-2026-19166?
The potential consequence of CVE-2026-19166 is a remote attacker being able to perform a sandbox escape via a crafted HTML page.