External risk intelligence

Chrome on Android can let attackers take control of your phone through malicious websites

CVE advisorySeverity: HIGH (CVSS 7.5)

CVE-2026-6319

An external attacker could trick users into visiting a malicious website to execute unauthorized code on their Android devices. This could lead to sensitive information being exposed or the device being controlled.

3Halo Surface Signal

Use After Free

Google Chrome

before 147.0.7727.101

External exposure likelihood

Halo Surface Signal score for CVE-2026-6319

The vulnerability resides in the Google Chrome browser on Android. While the browser is an internet-facing client-side application, exploitation requires a user to be lured to a specific website and perform manual UI interactions. It is not an internet-exposed service, gateway, or management interface, but rather a client-side execution path triggered by user activity.

Horizon Alert

Summary of the vulnerability and why it matters

A vulnerability in Google Chrome on Android could allow an attacker to run malicious code on a user's device. This happens if a user visits a specially crafted web page and interacts with it in a specific way.

  • Users are at risk.
  • Attacker could gain significant control.
  • Requires user interaction on a website.

Attack Path

How an attacker could exploit the issue

An attacker can use a specially crafted HTML page to exploit a use-after-free vulnerability in Chrome's Payments component on Android. By tricking a user into specific UI interactions, the attacker could achieve arbitrary code execution on the user's device.

  • Remote attacker can exploit.
  • Requires specific UI gestures.
  • Targets Chrome on Android.

Live Threat

Current exploitation, exposure, and threat context

This use-after-free vulnerability in Chrome for Android presents a moderate threat, as successful exploitation requires convincing a user to visit a malicious webpage and perform specific UI gestures. While this limits its direct use as an unauthenticated, zero-click exploit, a sophisticated attacker could still leverage it through social engineering or by compromising a legitimate website. The nature of client-side vulnerabilities often means they are chained with other exploits to achieve a desired outcome.

  • Exploitation requires user interaction.
  • No public exploit code is readily available.
  • This vulnerability was published in April 2026.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

Prioritize updating Google Chrome on Android to version 147.0.7727.101 or later to address a use-after-free vulnerability in Payments that could allow remote code execution. If immediate patching is not feasible, focus on educating users about phishing and social engineering tactics that could lead to exploitation.

  • Update Chrome to 147.0.7727.101.
  • Block known malicious domains.
  • Monitor for signs of exploitation.

Frequently asked questions

What is Google Chrome on Android and what is it used for?

Google Chrome on Android is a web browser used to access websites and web applications on Android mobile devices. It allows users to search the internet, view online content, and interact with various online services.

What is CVE-2026-6319? What kind of weakness is it?

CVE-2026-6319 is a use-after-free vulnerability in the Payments component of Google Chrome on Android. A use-after-free weakness occurs when a program tries to access memory after it has been freed, which can lead to crashes or unpredictable behavior, potentially allowing attackers to execute code.

How might an attacker exploit CVE-2026-6319?

An attacker could exploit this vulnerability by presenting a user with a crafted HTML page. The attacker would need to convince the user to perform specific UI gestures within the browser for the exploit to trigger. Visiting a malicious page alone is not enough; user interaction is required.

Who should care about CVE-2026-6319?

Anyone running Google Chrome on Android should be aware of this vulnerability. While it requires user interaction to exploit, it affects an internet-facing client-side application, meaning users could be targeted through websites they visit.

What is the first step to respond to this threat?

The primary step is to update Google Chrome on your Android device to version 147.0.7727.101 or a later version, as this will contain the fix for the vulnerability.

References