CVE-2026-79286: Missing authorization in CustomTabs

Published Mar 30, 2026
·
Updated

Missing authorization in CustomTabs in Google Chrome on on Android prior to 152.0.7977.65 allowed a local attacker to potentially execute arbitrary code outside the sandbox via a co-installed app. (Chromium security severity: Medium)

Credit

Google

Affected Software

2 affected componentsFixes available
Google Google Chrome for Android<152.0.7977.65
Google Chrome<152.0.7977.64
152.0.7977.64

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 152.0.7977.64
  2. Upgrade

    Upgrade Google Chrome (Android) - CustomTabs to a version that resolves this vulnerability.

    Fixed in 152.0.7977.65

Event History

Mar 30, 2026
CVE Published
12:00 AM
Data Sourced
12:00 AM
SeverityWeaknessAffected Software
Aug 25, 2026
CVE Published
via MITRE·08:10 PM
Data Sourced
via MITRE·08:10 PM
DescriptionWeakness
Data Sourced
via NVD·09:18 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

Which devices and deployments are exposed?

The issue affects Google Chrome on Android before version 152.0.7977.65. Exploitation requires a co-installed app, so the relevant exposure is on Android devices where an attacker can get a malicious app installed locally.

2

What access does an attacker need to exploit this?

The attacker needs local access through a co-installed application. The provided information does not describe a remote or browser-only exploitation path.

3

What is the security impact if exploitation succeeds?

A successful exploit could allow arbitrary code execution outside the Chrome sandbox. The issue is rated Medium by Chromium.

Company

Resources

Contact

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