CVE-2026-28839 Missing authorization in macOS

Medium 5.3 Published 25 Mar 2026 Updated 2 Apr 2026

An app can access sensitive user data due to missing authorization checks in macOS, requiring a system update to fix.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-28839?

CVE-2026-28839 is a medium-severity missing authorization vulnerability in Apple Macos, published on 25 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The issue was addressed with improved checks. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to access sensitive user data.

Weakness: CWE-285

Which versions are affected by CVE-2026-28839?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2026-28839?

No fix has been published for CVE-2026-28839 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-28839 being exploited?

There is no known exploitation of CVE-2026-28839 in the wild and no public exploit code.

All Apple Macos vulnerabilities

Sources

Also known as GHSA-p882-fhhg-97p6.