CVE-2026-9947

8.8

Google · Chrome

A use-after-free vulnerability in the XML parsing component of Google Chrome may allow an attacker to execute arbitrary code via a specially crafted XML document.

Executive summary

A critical use-after-free vulnerability in Google Chrome’s XML parser poses a significant risk for remote code execution when processing malicious XML-based web content.

Vulnerability

This is a use-after-free (CWE-416) vulnerability within the XML parsing engine. The attack is network-accessible and requires user interaction, where an attacker tricks a user into loading a malicious XML object within the browser.

Business impact

The ability for an attacker to execute arbitrary code via the browser provides a direct path to compromising the user's workstation. Given the CVSS score of 8.8, this vulnerability carries severe business risk, including the potential for unauthorized data access, credential theft, and lateral movement within the corporate network.

Remediation

Immediate Action: Update all installations of Google Chrome to version 148.0.7778.216 or later to eliminate the vulnerability.

Proactive Monitoring: Monitor endpoint activity for suspicious processes being spawned from the Chrome browser process, which may indicate attempted exploitation.

Compensating Controls: Ensure that enterprise security software is configured to scan web content for malicious payloads and that browser-specific hardening configurations are active.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Due to the critical nature of this vulnerability, immediate patching is required to prevent potential exploitation. Security teams should treat this as a high-priority update to ensure the continued security and integrity of the organization’s browser-based environment.

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