CVE-2026-0021: High severity Google Android vulnerability

Published Mar 2, 2026

Updated

In hasInteractAcrossUsersFullPermission of AppInfoBase.java, there is a possible cross-user permission bypass due to a confused deputy. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Affected Software

6 affected components

Google Android=14.0

Google Android=15.0

Google Android=16.0

Google Android=16.0-qpr2_beta_1

Google Android=16.0-qpr2_beta_2

Google Android=16.0-qpr2_beta_3

Event History

Mar 2, 2026

CVE Published

via MITRE·06:42 PM

Data Sourced

via MITRE·06:42 PM

DescriptionWeakness

Data Sourced

via NVD·07:16 PM

DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

What is the severity of CVE-2026-0021?

CVE-2026-0021 is classified as a high severity vulnerability due to the potential for local escalation of privilege.

How do I fix CVE-2026-0021?

To fix CVE-2026-0021, it's essential to update to the latest version of Google Android that addresses this vulnerability.

What systems are impacted by CVE-2026-0021?

CVE-2026-0021 affects Google Android versions 14.0, 15.0, and 16.0, including specific beta releases.

Can CVE-2026-0021 be exploited without user interaction?

Yes, CVE-2026-0021 can be exploited without any user interaction, making it particularly concerning.

What type of vulnerability is CVE-2026-0021?

CVE-2026-0021 is a cross-user permission bypass vulnerability that arises from a confused deputy problem.