CVE-2026-19165: Use After Free
Use after free in Extensions in Google Chrome prior to 151.0.7922.109 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code inside a sandbox via a crafted Chrome Extension. (Chromium security severity: High)
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Google Chrometo a version that resolves this vulnerability.Fixed in 151.0.7922.109 - Compensating control
Prevent users from installing untrusted/malicious Chrome extensions (e.g., restrict extension installation to trusted sources/users via organizational policy or user guidance) until Chrome is updated.
Event History
Frequently Asked Questions
What is the severity of CVE-2026-19165?
CVE-2026-19165 has a high severity rating due to the potential for arbitrary code execution.
How do I fix CVE-2026-19165?
To fix CVE-2026-19165, update Google Chrome to version 151.0.7922.109 or later.
What causes CVE-2026-19165?
CVE-2026-19165 is caused by a use after free vulnerability in the extensions of Google Chrome.
What type of attack can exploit CVE-2026-19165?
CVE-2026-19165 can be exploited by an attacker convincing a user to install a malicious extension that executes arbitrary code.
Which software is affected by CVE-2026-19165?
CVE-2026-19165 affects Google Chrome versions prior to 151.0.7922.109.