CVE-2026-20670 Missing authorization in macOS

Medium 5.5 Published 25 Mar 2026 Updated 21 Aug 2026

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

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-20670?

CVE-2026-20670 is a medium-severity missing authorization vulnerability in Apple Macos, published on 25 Mar 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An authorization issue was addressed with improved state management. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3. An app may be able to access sensitive user data.

Which versions are affected by CVE-2026-20670?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2026-20670?

No fix has been published for CVE-2026-20670 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-2026-20670 being exploited?

There is no known exploitation of CVE-2026-20670 in the wild and no public exploit code.

All Apple Macos vulnerabilities

Sources

Also known as GHSA-6hg7-v5xr-46g2.