External risk intelligence

Google Chrome Type Confusion GPU Sandbox Escape

CVE advisorySeverity: CRITICAL (CVSS 9.6)

CVE-2026-11052

The vulnerability resides within the client-side browser's GPU process. Exploitation requires the user to visit a crafted HTML page, making it a client-side attack vector rather than a network-exposed service, appliance, or server-side endpoint.

Google Chrome

before 149.0.7827.53

Halo Surface Signal: 1 out of 5 — much less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A type confusion vulnerability in the GPU component of Google Chrome on Windows could allow an attacker to escape the browser's sandbox. This means an attacker who has already compromised the user's browser could potentially gain higher-level access to the system.

Allows attackers to break out of browser sandbox.
Confirms risk to user systems and data.
Assess Chrome usage and potential exposure.

Attack Path

How an attacker could exploit the issue

An attacker could lure a user into visiting a malicious webpage, which then exploits a type confusion vulnerability in the browser's graphics processing component. If successful, this could allow the attacker to break out of the browser's security sandbox, potentially leading to further compromise of the system.

Requires a compromised renderer process.
Triggered by a crafted HTML page.
Risk of sandbox escape.

Live Threat

Current exploitation, exposure, and threat context

A type confusion vulnerability in Chrome's GPU process could allow a sandbox escape if an attacker can get a user to visit a malicious HTML page. This could potentially affect system data and service behavior.

System data and service behavior could be affected.
Via a crafted HTML page viewed by a user.
Could lead to unauthorized system actions.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability impacts the Google Chrome browser on Windows, specifically within the GPU component, and could allow for a sandbox escape. The first step is to identify all instances of the affected Chrome version, confirm their exposure and criticality, and assign ownership for remediation.

Confirm Chrome version and owner.
Verify user exposure and impact.
Plan and coordinate updates.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is Google Chrome?

Google Chrome is a widely used web browser that renders web pages using complex processes, including a specialized GPU component for hardware acceleration. This component manages graphics tasks to improve performance and display capabilities on your Windows system. Because browsers frequently process untrusted content from the internet, they rely on this architecture to separate core browsing tasks from system-level operations.

How does CVE-2026-11052 type confusion work?

This vulnerability involves a weakness known as CWE-843, or Type Confusion. It occurs when software performs an operation on a piece of data using the wrong type, such as treating a memory object as if it were a different data structure than it actually is. In this instance, the mismatch occurs within the browser's GPU processing logic, which can lead to unpredictable behavior and allow an attacker to bypass critical security controls.

When does this vulnerability trigger?

This issue is triggered when a user visits a malicious, specially crafted HTML page while using an affected version of Chrome. It does not occur through simple network traffic or by merely having the browser installed. Furthermore, the attacker must have already successfully compromised the browser's renderer process to leverage this flaw for a sandbox escape; it cannot be triggered if the renderer process remains secure.

Is my system at risk according to Halo Surface Signal?

Halo Surface Signal notes that this is a client-side vulnerability rather than a network-exposed service, making it very unlikely to be exploited as a remote network attack. Your risk depends primarily on user behavior, specifically the likelihood of someone in your environment navigating to a malicious website. Since it requires local interaction, it differs significantly from vulnerabilities affecting internet-facing servers or appliances.

How do I protect my systems from this flaw?

The primary defense is to update Google Chrome on all Windows machines to version 149.0.7827.53 or higher. Start by auditing your inventory to locate systems running older versions, verify their current state, and prioritize these devices for patching. Since this is a browser-based security update, ensuring that the automatic update mechanism is functioning correctly across your user base is the most effective way to remediate the risk.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.