External risk intelligence

Google Chrome for Android WebGL Sandbox Escape

CVE advisorySeverity: CRITICAL (CVSS 9.6)

CVE-2026-13028

The vulnerability exists in a web browser, which is an internet-facing client application designed to process external content. While it requires user interaction, the browser itself is inherently exposed to the public internet as a primary interface for web content, making exploitation via crafted web pages a common and expected deployment context for this type of software.

Use After Free

Google Chrome

before 149.0.7827.197

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

This CVE describes a critical vulnerability found in Google Chrome on Android. It involves a memory management issue that, if exploited through a malicious webpage, could allow an attacker to break out of the browser's security sandbox, potentially leading to significant compromise of the device. The main concern is confirming relevance and exposure.

  • A browser memory flaw could allow attackers to escape security limits.
  • It affects internet-facing client applications used daily.
  • Confirm relevance and exposure for critical Chrome Android issues.

Attack Path

How an attacker could exploit the issue

An attacker could lead a user to a malicious webpage that triggers a flaw in Chrome's WebGL component on Android. This could allow them to break out of the browser's security sandbox, potentially leading to significant compromise of the device.

  • Attacker hosts a malicious webpage.
  • WebGL component processes crafted HTML.
  • Sandbox escape and data compromise.

Live Threat

Current exploitation, exposure, and threat context

A use-after-free vulnerability in Chrome's WebGL implementation on Android could allow an attacker to escape the browser's sandbox when a user visits a malicious webpage. This could lead to increased system privileges within the device.

  • Compromised sandbox and potential system access.
  • Malicious webpage interaction by user.
  • Attacker gains elevated privileges on device.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability affects Google Chrome on Android. Ownership likely resides with the application owner or platform team responsible for managing mobile applications, with initial steps involving identifying affected devices, assessing business criticality and user exposure, and confirming ownership before planning remediation.

  • Own by: Application or platform owner.
  • Verify first: Device and user exposure.
  • Action: Plan targeted update.

Supplementary metadata

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.

Frequently asked questions

What is Google Chrome for Android and what does WebGL do?

Google Chrome for Android is a web browser used for accessing the internet. WebGL is a specialized component within the browser that allows it to render interactive 2D and 3D graphics directly within web pages using the device's hardware capabilities.

What is the use-after-free weakness in CVE-2026-13028?

This is a memory management error identified as CWE-416. It occurs when a program continues to use a memory address after that memory has been cleared or deleted. In this case, the flaw in the WebGL component could be manipulated to bypass security controls.

How does an attacker trigger this Chrome vulnerability?

An attacker triggers this by luring a user to a specially crafted malicious webpage. Merely having the browser installed does not trigger the bug; the browser must actively process the malicious HTML code, which exploits the memory flaw during the rendering of web content.

Is CVE-2026-13028 relevant to my mobile device?

According to Halo Surface Signal, this vulnerability is highly relevant because browsers are inherently internet-facing and designed to process untrusted external content. If you use an affected version of Chrome on Android, your device is exposed when visiting malicious sites.

Do I need to take action to secure my Android device?

Yes. The first step is to verify if your device is running a version of Chrome earlier than 149.0.7827.197. If so, plan to update the application through the official app store as soon as possible to receive the security patch that resolves the memory flaw.

References