External risk intelligence

ANGLE Integer Overflow in Chrome Allows Sandbox Escape

CVE advisorySeverity: CRITICAL (CVSS 9.6)

CVE-2026-11088

The vulnerability exists within the browser renderer process and requires a user to navigate to a specifically crafted HTML page to trigger the issue. Because it is a client-side consumer application component that is not a network-facing service, listener, or gateway, it lacks typical public internet exposure.

Integer Overflow

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

This advisory concerns an integer overflow vulnerability in ANGLE, a component within Google Chrome. If exploited, an attacker could potentially escape the browser's security sandbox, which could allow for broader system access. The main concern is confirming relevance and exposure, as exploitation requires a user to visit a malicious web page.

An overflow in Chrome's ANGLE component.
Affects potential sandbox escape and broader access.
Confirm relevance and exposure to user activity.

Attack Path

How an attacker could exploit the issue

A remote attacker who has already compromised the renderer process could craft a malicious HTML page to trigger an integer overflow in ANGLE, potentially leading to a sandbox escape.

Attacker needs renderer process compromise.
Triggered by a crafted HTML page.
Risk of sandbox escape.

Live Threat

Current exploitation, exposure, and threat context

A remote attacker who has compromised the renderer process could potentially escape the sandbox by tricking a user into visiting a crafted HTML page. This could affect the confidentiality, integrity, and availability of user data and system resources accessible from the sandbox.

Browser sandbox escape.
Via a malicious HTML page.
Could lead to system compromise.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability in ANGLE, used by Google Chrome, allows for sandbox escape. Identifying affected systems is the first step, followed by confirming business criticality and then planning remediation.

Browser and application owners should own this.
Verify user exposure and affected versions.
Plan remediation based on risk and impact.

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 the ANGLE component in Google Chrome?

ANGLE is an open-source graphics engine abstraction layer integrated into Chrome. It translates high-level graphics calls—typically designed for one API—into the native graphics APIs available on the user's operating system, such as DirectX, OpenGL, or Vulkan. By standardizing these interactions, it allows the browser to render 3D web content and hardware-accelerated graphics consistently across different hardware configurations and platforms.

What does an integer overflow mean for CVE-2026-11088?

In this context, an integer overflow (CWE-190) occurs when a mathematical operation in the ANGLE component produces a value too large for its allocated memory space. This memory error can destabilize the program's logic. For CVE-2026-11088, this specific weakness allows an attacker who has already breached the browser's renderer process to manipulate memory in a way that breaks out of the security sandbox, granting unauthorized access to the underlying system.

How is this Chrome vulnerability triggered?

The flaw requires an attacker to first gain control of the renderer process and then lure a user to a specially crafted HTML page. The vulnerability is not triggered by simply having the browser installed or running; it depends on the user navigating to malicious content that interacts with the flawed ANGLE code. If the user does not visit the specific malicious site or the renderer process is not compromised, the trigger path is not met.

Do I need to worry if my systems are not internet-facing?

According to Halo Surface Signal, this vulnerability is classified as unlikely to pose a high risk for typical server-side assets because it resides in a client-side consumer application. Since Chrome is not a network-facing service, listener, or gateway, it does not have the typical public internet exposure that would make it a primary target for automated, external network-wide attacks. Focus your concern on endpoints where users actively browse the web.

How should I respond to CVE-2026-11088?

The primary response is to ensure your instances of Google Chrome are updated to version 149.0.7827.53 or later. Because this issue is specific to the browser software, focus on identifying which machines in your environment are running older versions. Prioritize updates for systems used by personnel who frequently navigate to untrusted or external websites, as patching the browser is the only way to mitigate the underlying flaw in the ANGLE component.

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.