External risk intelligence

Use After Free in Chrome Tint Allows Code Execution

CVE advisorySeverity: CRITICAL (CVSS 9.6)

CVE-2026-106281

The vulnerability exists in a web browser, which is an internet-facing client application designed to process external, untrusted content from the web as its primary function.

Use After Free

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A vulnerability in Google Chrome's Tint component could allow a remote attacker to execute code outside the browser's security sandbox by tricking a user into visiting a malicious webpage. While the specific impact depends on the user's interaction and system configuration, this type of flaw generally poses a risk to user data and system integrity. The main concern at this stage is confirming whether our specific Chrome usage is exposed.

A flaw in Chrome's Tint component is concerning.
It could allow malicious code execution.
Confirm relevance and exposure to Chrome usage.

Attack Path

How an attacker could exploit the issue

An attacker could trick a user into visiting a malicious webpage. This webpage would contain specially crafted content that triggers a flaw in how Chrome's Tint component handles memory. Successfully triggering this flaw could allow the attacker to execute code with elevated privileges, potentially escaping the browser's security sandbox.

Requires a user to visit a malicious page.
Triggered by a use-after-free flaw in Tint.
Allows code execution outside the sandbox.

Live Threat

Current exploitation, exposure, and threat context

A use-after-free vulnerability in Tint, a component within Google Chrome, could allow a remote attacker to execute arbitrary code. This could occur when a user visits a malicious HTML page.

Arbitrary code execution may occur.
Crafted HTML page can trigger the flaw.
Sandbox escape could be possible.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability in Google Chrome's Tint component could allow remote code execution outside the sandbox, requiring immediate attention from teams managing user-facing applications and browser deployments. The first practical move is to identify all instances of the affected Chrome version, assess their exposure to the internet and business criticality, and then coordinate remediation efforts with platform or infrastructure teams.

Application owners and platform teams.
Verify Chrome browser reachability and criticality.
Plan and coordinate targeted 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 the Tint component in Google Chrome?

Tint is a specific internal component within the Google Chrome browser architecture. It handles various display and rendering tasks that ensure web content appears correctly on your screen. Because Chrome is a complex application designed to interpret and display untrusted data from the internet, components like Tint are essential for processing the visual elements of web pages you visit every day.

What does a use-after-free vulnerability mean for CVE-2026-106281?

A use-after-free, classified as CWE-416, happens when software continues to use a memory address after that memory has been cleared or released. If an attacker knows how to manipulate this timing, they can place their own malicious data into that empty space. In the context of this CVE, it allows an attacker to trick Chrome into executing unauthorized code instead of legitimate browser instructions.

How is this Chrome vulnerability triggered?

The flaw is triggered when a user navigates to a specifically crafted HTML page designed to exploit the memory management error in the Tint component. Simply having Chrome installed is not enough to trigger the issue; the malicious code must be processed during a browsing session. The bug does not activate if the user avoids visiting untrusted or compromised websites.

Is my system at risk from this browser issue?

According to Halo Surface Signal, this vulnerability is highly relevant because Google Chrome is an internet-facing application that inherently processes external, untrusted content. Since the browser's primary function is to connect to the internet, any device running an outdated version of Chrome is potentially reachable by an attacker who can host a malicious webpage.

Do I need to update my Chrome browser to fix this?

Yes, you should prioritize updating your browser to the latest version. The first step is to inventory your systems to locate any installations running versions prior to 155.0.8059.39. Once identified, coordinate with your teams to apply the official stable channel update provided by the vendor, which contains the necessary code changes to address the memory management flaw.

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.