CVE-2026-78899

8.8

Google · Chrome

A use-after-free vulnerability in the V8 JavaScript engine of Google Chrome allows a remote attacker to trigger memory corruption and potentially execute arbitrary code via a crafted webpage.

Executive summary

A high-severity use-after-free vulnerability in Google Chrome's V8 engine could allow an attacker to execute arbitrary code through a compromised web interaction.

Vulnerability

This is a use-after-free vulnerability (CWE-416) within the V8 JavaScript engine. It requires user interaction, as an attacker would need to lure a user into visiting a specifically crafted malicious website to trigger the exploit.

Business impact

Successful exploitation could allow an attacker to gain the same privileges as the logged-in user, leading to potential data theft, malware installation, or system instability. While the CVSS score of 8.8 reflects a high risk, the requirement for user interaction slightly lowers the probability of an automated, widespread attack compared to unauthenticated remote code execution.

Remediation

Immediate Action: Apply the latest browser security updates provided by Google to ensure Chrome is moved to a version beyond the affected release.

Proactive Monitoring: Monitor for unexpected browser crashes or suspicious behavior in browser-based applications that might indicate memory corruption attempts.

Compensating Controls: Utilize browser-based security policies, such as disabling unnecessary plugins or utilizing endpoint protection software that detects malicious browser activity.

Exploitation status

Public Exploit Available: Unknown

Analyst recommendation

Organizations should enforce automated browser updates to ensure all workstations are running the most current, patched version of Google Chrome. Given the ubiquity of Chrome in enterprise environments, patching this vulnerability is essential to maintaining a secure end-user computing posture.

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