CVE-2026-28603 Privilege escalation in Android
A confused deputy vulnerability in Android allows local attackers to read and write private files, leading to privilege escalation 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-2026-28603?
CVE-2026-28603 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 assertSafeToStartCustomActivity of AppRestrictionsFragment.java, there is a possible read/write access to private files 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-2026-28603?
It affects 1 product.
Products include Google Android.
How do I fix CVE-2026-28603?
Apply the vendor's patch.
Is CVE-2026-28603 being exploited?
There is no known exploitation of CVE-2026-28603 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as A-491253353, ASB-A-491253353, GHSA-8pfw-pv2w-493m.