External risk intelligence

Chrome USB Use After Free Sandbox Escape

CVE advisorySeverity: CRITICAL (CVSS 9.6)

CVE-2026-13880

This vulnerability exists within the browser renderer process and requires a user to navigate to a crafted HTML page. It is client-side software rather than an internet-facing service, gateway, or network appliance, making direct, unsolicited public-internet-based reachability unlikely.

Use After Free

Google Chrome

before 150.0.7871.47

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 has been identified in Google Chrome on macOS, stemming from a use-after-free flaw in its USB handling. While an attacker cannot directly exploit this, if they have already compromised the browser's rendering process, they could potentially escape the sandbox using a specially crafted webpage. The main concern is confirming whether our specific systems are exposed to this risk.

Flaw in Chrome's USB handling.
Potential sandbox escape via malicious websites.
Confirm relevance and exposure for our systems.

Attack Path

How an attacker could exploit the issue

An attacker with a compromised renderer process could entice a user to visit a malicious webpage. This crafted page would then trigger a use-after-free flaw in the browser's USB handling, potentially allowing the attacker to break out of the browser's sandbox.

Compromised renderer process needed.
Crafted HTML page triggers vulnerability.
Risk of sandbox escape.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an attacker who has already compromised the browser's renderer process to escape the sandbox when a user visits a malicious HTML page. This could potentially affect system data and service behavior, though direct public-internet exploitation is unlikely due to client-side conditions.

System data and service behavior may be compromised.
Renderer process compromise and user action are required.
Sandbox escape could impact the host system.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability impacts Google Chrome on macOS. Identifying instances of Chrome, confirming user reachability via crafted HTML, and assessing business criticality are the initial steps. Ownership will likely fall to endpoint or platform teams, in coordination with security and vendor management.

Endpoint or platform teams own remediation.
Verify user exposure to crafted web pages.
Plan updates during scheduled maintenance windows.

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 runs on various operating systems, including macOS. It manages complex tasks like hardware communication—such as USB device interaction—and web content rendering through isolated processes, known as sandboxes, to keep the underlying system protected while you browse.

What does CWE-416 mean for CVE-2026-13880?

CWE-416 refers to a 'Use After Free' weakness. In simple terms, the browser’s USB component accidentally tries to use a piece of computer memory that it has already cleared or released. CVE-2026-13880 occurs when an attacker manipulates this memory error to trick the browser into executing unintended code.

How does an attacker trigger this Chrome vulnerability?

The flaw is not triggered by simply having the browser open. An attacker must first compromise the browser's renderer process and then entice the user to visit a specially crafted HTML page. Simply plugging in a USB device does not trigger this bug; the malicious web content is the essential catalyst.

Why is this CVE considered 'Very unlikely' to reach by Halo Surface Signal?

Halo Surface Signal identifies this as client-side software, not an internet-facing network service. Because it requires a specific user interaction—visiting a malicious site—rather than a direct, unsolicited attack from the public internet, it is categorized as very unlikely to be reached via common network attack vectors.

Do I need to update my browser to fix CVE-2026-13880?

Yes. Since this is a software defect, the primary step is to ensure your version of Google Chrome on macOS is updated to 150.0.7871.47 or later. You should verify your current version through the browser's settings and coordinate with your internal IT or endpoint management teams to apply the official patch.

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.