External risk intelligence

Google Chrome Dawn Out of Bounds Read Sandbox Escape

CVE advisorySeverity: CRITICAL (CVSS 9.6)

CVE-2026-14416

This vulnerability exists in the browser's client-side rendering engine (Dawn/Chromium) and requires a user to navigate to a crafted HTML page. Because it is a client-side component rather than a public-facing network service, listener, or gateway, it is not considered internet-accessible by default deployment patterns.

Out-of-bounds Read

Google Chrome

before 150.0.7871.46

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 vulnerability was discovered in the Dawn component of Google Chrome that could allow a remote attacker to escape the browser's sandbox through a specially crafted web page. While rated as critical, the potential for exploitation is considered very unlikely due to the client-side nature of the vulnerability and the requirement for user interaction.

Browser flaw could allow code escape.
Requires user to visit a malicious page.
Confirm if related browsers are used.

Attack Path

How an attacker could exploit the issue

An attacker could trick a user into visiting a malicious webpage. This page would contain specially crafted code designed to exploit a flaw in Chrome's rendering engine. If successful, this could allow the attacker to break out of the browser's security sandbox.

Requires user to visit a malicious page.
Exploits a rendering engine vulnerability.
Risk of sandbox escape.

Live Threat

Current exploitation, exposure, and threat context

A remote attacker could potentially escape the browser's sandbox by tricking a user into visiting a malicious HTML page. This could lead to unauthorized access to system resources or data beyond the browser's intended limitations.

Browser sandbox escape.
User visits crafted HTML page.
Potential access to system data.

Operational Fix

Recommended remediation, mitigation, and detection steps

Real-world action for this vulnerability likely falls to teams managing end-user computing environments and browser deployments. The initial focus should be on identifying all instances of the affected browser, assessing their exposure to malicious web content, and confirming business criticality to prioritize remediation efforts. This process requires collaboration between application owners, infrastructure teams, and potentially vendor management if third-party software relies on specific browser versions.

Browser and endpoint security teams.
Verify user exposure to untrusted web content.
Plan controlled browser updates or user guidance.

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 Dawn in Google Chrome?

Dawn is a core component within the Google Chrome browser that serves as an open-source graphics library. It translates web-based graphics commands into instructions that the computer's hardware, such as the GPU, can understand. It is fundamental for rendering modern web content, including complex interactive graphics and web-based applications, safely within the browser's environment.

What does an out-of-bounds read vulnerability mean in CVE-2026-14416?

This vulnerability is classified as CWE-125, which occurs when software reads data past the intended end of a designated memory buffer. In the context of this CVE, it means the Dawn component inadvertently accesses memory it should not be able to reach. An attacker can leverage this memory access error to gain unauthorized insights, eventually attempting to bypass the security sandbox that normally keeps browser processes isolated from the rest of the operating system.

How is this vulnerability triggered?

The trigger requires a user to navigate to a specifically crafted HTML page designed to exploit the memory error. The bug does not activate simply by having the browser installed or running in the background. It will not trigger if the user only visits trusted, benign websites or if the browser's security features successfully block the rendering of the malicious code before the error occurs.

Is my system at risk if I run Google Chrome?

Halo Surface Signal notes that because this is a client-side rendering issue rather than a public-facing network service, it is not categorized as internet-accessible in standard deployments. The primary risk is to end-user workstations where individuals browse the web. Your exposure depends on whether users in your environment frequently interact with untrusted or potentially malicious web content.

What should I do to address this CVE?

Begin by auditing your environment to identify all systems running versions of Google Chrome prior to 150.0.7871.46. Since this is a client-side update, prioritize coordinating with your endpoint management or IT support teams to ensure the browser is updated to the latest stable version. Focus on devices where users have high exposure to external, unverified web traffic as a primary step.

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.