CVE-2026-12467 Google CVE debrief

Who should care

This vulnerability affects users of Google Chrome, particularly those who use the browser for sensitive activities or in high-risk environments. IT administrators and cybersecurity professionals should prioritize patching this vulnerability to prevent potential sandbox escapes and other malicious activities.

Technical summary

CVE-2026-12467 is a use after free vulnerability in the Extensions feature of Google Chrome. This vulnerability occurs when the browser's Extensions feature attempts to access memory that has already been freed, allowing an attacker to potentially execute arbitrary code. The vulnerability has a CVSS score of 8.3 and is considered high-severity. The vulnerability can be exploited via a crafted HTML page, which can be used to compromise the renderer process and potentially escape the sandbox.

Defensive priority

High

Recommended defensive actions

• Update Google Chrome to version 149.0.7827.155 or later
• Ensure that all users of Google Chrome are aware of the vulnerability and the importance of updating to the latest version
• Consider implementing additional security measures, such as sandboxing and isolation, to prevent potential sandbox escapes
• Monitor Google Chrome for any suspicious activity or potential exploits
• Implement a vulnerability management program to ensure timely patching of vulnerabilities
• Consider using a web application firewall to detect and prevent exploitation attempts

Evidence notes

The information provided is based on the CVE record and NVD detail for CVE-2026-12467. The CVE record and NVD detail provide information on the vulnerability, including its severity, CVSS score, and potential impact. [resourceLinkAnnotations:cve-org,nvd]

Official resources