CVE-2026-5865

Google · Chrome

A type confusion vulnerability in the V8 engine of Google Chrome allows for potential arbitrary code execution.

Executive summary

A type confusion vulnerability in Google Chrome’s V8 engine presents a significant risk of remote code execution.

Vulnerability

This is a type confusion error within the V8 JavaScript engine. An unauthenticated attacker can exploit this by crafting a malicious website, causing the browser to execute arbitrary code.

Business impact

Exploiting the V8 engine is a common technique used by threat actors to break out of browser sandboxes. With a CVSS score of 8.8, this vulnerability poses a high risk to the overall security posture of any organization relying on Google Chrome.

Remediation

Immediate Action: Update Google Chrome to version 147 or higher to patch the V8 engine vulnerability.

Proactive Monitoring: Monitor for browser-related anomalies and ensure that endpoints are running updated anti-malware software.

Compensating Controls: Use a modern browser with robust sandboxing and disable unnecessary features or plugins that could increase the attack surface.

Exploitation status

Public Exploit Available: false

Analyst recommendation

V8 engine flaws are consistently targeted by attackers. Organizations must ensure that Google Chrome is kept up to date across all workstations to protect against potential exploitation.