Use After Free Vulnerability in Google Chrome Web Authentication
CVE-2026-19166

9.6CRITICAL

Key Information:

Vendor

Google
Status
Chrome
Vendor
CVE Published:
6 August 2026

What is CVE-2026-19166?

An issue identified in the Web Authentication component of Google Chrome prior to version 151.0.7922.109 involves a use after free condition. This vulnerability can be exploited by remote attackers to potentially execute a sandbox escape using a carefully crafted HTML page. Attackers could leverage this flaw to bypass Chrome's security measures, posing serious risks to user data and system integrity.

Affected Version(s)

Chrome 151.0.7922.109

References

https://chromereleases.googleblog.com/2026/08/stable-chan...
https://issues.chromium.org/issues/536584251

CVSS V3.1

Score:
9.6
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.