CVE-2026-84580 Security feature bypass in macOS

High 8.4 Published Updated

An app can break out of its sandbox, allowing potential privilege escalation or code execution outside intended boundaries.

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-2026-84580?

CVE-2026-84580 is a high-severity vulnerability in Apple Macos, published on 14 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The issue was addressed with improved checks. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to break out of its sandbox.

Weakness: CWE-862

Which versions are affected by CVE-2026-84580?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2026-84580?

No fix has been published for CVE-2026-84580 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-84580 being exploited?

There is no known exploitation of CVE-2026-84580 in the wild and no public exploit code.

All Apple Macos vulnerabilities

Sources

Also known as GHSA-vmcr-vvm6-5x2p.

Is CVE-2026-84580 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free