CVE-2026-6304
8.3Google · Chrome
A use after free vulnerability in the Graphite component of Google Chrome allows a remote attacker to perform a sandbox escape via a crafted HTML page.
Executive summary
A critical use after free vulnerability in Google Chrome allows remote attackers to perform a sandbox escape, posing a severe risk of system compromise.
Vulnerability
This is a use after free vulnerability (CWE-416) within the Graphite component. It requires a remote attacker to compromise the renderer process, typically via a crafted HTML page, to achieve a sandbox escape.
Business impact
The ability to escape the browser sandbox represents a significant security failure, as it allows an attacker to break out of the restricted environment and potentially execute arbitrary code on the underlying host system. Given the CVSS score of 8.3, this vulnerability is classified as High, indicating a severe threat to data confidentiality, integrity, and system availability. Successful exploitation could lead to full system compromise, sensitive data exfiltration, or the installation of persistent malware.
Remediation
Immediate Action: Update Google Chrome to version 147.0.7727.101 or later immediately to incorporate the security fix.
Proactive Monitoring: Monitor endpoint security logs for unusual browser activity or unexpected process spawning originating from the Chrome renderer process.
Compensating Controls: Ensure that the principle of least privilege is applied to all user accounts and that endpoint detection and response (EDR) solutions are configured to alert on suspicious sandbox breakout attempts.
Exploitation status
Public Exploit Available: Unknown
Analyst recommendation
Google Chrome users must prioritize the deployment of the latest stable channel update to address this high-severity flaw. Sandbox escape vulnerabilities provide an attacker with the necessary leverage to bypass browser security boundaries, making immediate patching the most effective strategy to mitigate the risk of remote system compromise.