CVE-2026-17666

Google · Chrome

A cryptographic flaw in the enterprise component of Google Chrome allows unauthorized access control bypass via malicious network traffic.

Executive summary

A critical cryptographic vulnerability in Google Chrome for enterprise environments allows a network-positioned attacker to bypass access controls.

Vulnerability

This issue stems from a cryptographic flaw in the enterprise configuration of the browser. It allows an attacker in a privileged network position to send malicious traffic that manipulates how the browser processes cryptographic operations, resulting in a bypass of discretionary access control.

Business impact

With a CVSS score of 9.1, this vulnerability is categorized as critical. It enables an attacker to circumvent security policies designed to protect enterprise data, which could lead to unauthorized data exposure or the unauthorized modification of browser-enforced security settings.

Remediation

Immediate Action: Update all enterprise-deployed instances of Google Chrome to version 151.0.7922.72 or later.

Proactive Monitoring: Review network traffic logs for suspicious patterns or anomalous packets targeting enterprise-managed browser endpoints.

Compensating Controls: Implement network-level security controls, such as traffic inspection and strict VLAN segmentation, to minimize the risk of attackers achieving a privileged network position.

Exploitation status

Public Exploit Available: No (no confirmed public exploit exists in current data).

Analyst recommendation

The critical nature of this vulnerability requires immediate attention for all enterprise environments. Organizations should deploy the update to version 151.0.7922.72 across all managed devices to ensure that enterprise security controls remain effective.