CVE-2026-17778

Google · Chrome

A use after free vulnerability in the Extensions component of Google Chrome may allow for arbitrary code execution.

Executive summary

A use after free vulnerability in the Google Chrome Extensions component poses a high risk of remote code execution for affected users.

Vulnerability

This is a use after free vulnerability residing within the Extensions framework. The attack vector is remote and requires user interaction, but it does not require the attacker to have prior authentication.

Business impact

The ability for an attacker to exploit the Extensions component could result in the compromise of browser-level security, potentially allowing access to stored credentials or session data. The CVSS score of 8.8 reflects the high potential for impact and the ease of delivery via malicious web content.

Remediation

Immediate Action: Update Google Chrome to version 151.0.7922.72 or later to patch the vulnerable Extensions component.

Proactive Monitoring: Monitor for suspicious extension behavior or unexpected changes to browser settings in the enterprise environment.

Compensating Controls: Utilize endpoint security tools to restrict the installation of unauthorized browser extensions and block known malicious domains.

Exploitation status

Public Exploit Available: No (exploit_available: false)

Analyst recommendation

The severity of this flaw warrants immediate attention from security teams. Deploy the provided browser update across the organization to mitigate the risk of exploitation and protect user sessions from potential takeover.