CVE-2026-28644 Privilege escalation in Android

High 7.8 Published Updated

A confused deputy vulnerability in Android's ActivityTaskManagerService allows local attackers to escalate privileges without user interaction.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2026-28644?

CVE-2026-28644 is a high-severity vulnerability in Google Android, published on 8 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In startNextMatchingActivity of ActivityTaskManagerService.java, there is a possible 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.

Weakness: CWE-441

Which versions are affected by CVE-2026-28644?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2026-28644?

Apply the vendor's patch.

Is CVE-2026-28644 being exploited?

There is no known exploitation of CVE-2026-28644 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-471797575, ASB-A-471797575, GHSA-gpw9-prx8-w9qg.

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