CVE-2026-11230

Google · Chrome

A Use-After-Free vulnerability in the Extensions component of Google Chrome may allow an unauthenticated attacker to gain unauthorized code execution.

Executive summary

Google Chrome contains a high-severity Use-After-Free vulnerability in the Extensions component that poses a serious risk of arbitrary code execution.

Vulnerability

The vulnerability is a Use-After-Free (UAF) memory corruption issue within the Extensions framework. An unauthenticated attacker can trigger this condition through a malicious webpage, potentially leading to unintended code execution.

Business impact

With a CVSS score of 8.8, this flaw is highly dangerous. Exploiting the Extensions component can allow an attacker to gain excessive privileges within the browser, potentially compromising any data accessible to installed extensions or the browser itself.

Remediation

Immediate Action: Update Google Chrome to version 149 or higher immediately to ensure the Extensions framework is secured.

Proactive Monitoring: Review installed browser extensions for unnecessary permissions and monitor for signs of unauthorized extension activity or unexpected browser behavior.

Compensating Controls: Restrict the installation of unauthorized browser extensions through enterprise management policies to reduce the attack surface.

Exploitation status

Public Exploit Available: false

Analyst recommendation

This vulnerability highlights the need for continuous browser maintenance. Organizations should ensure they are on version 149 or later and audit existing extensions to minimize the potential impact of browser-based security flaws.