CVE-2026-64790 Path traversal in macOS

High 7.8 Published Updated

An app can gain elevated privileges due to a path handling issue in macOS, requiring users to apply the latest security updates.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-64790?

CVE-2026-64790 is a high-severity path traversal vulnerability in Apple Macos, published on 14 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

A path handling issue was addressed with improved validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to gain elevated privileges.

Weakness: CWE-22

Which versions are affected by CVE-2026-64790?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2026-64790?

No fix has been published for CVE-2026-64790 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-64790 being exploited?

There is no known exploitation of CVE-2026-64790 in the wild and no public exploit code.

All Apple Macos vulnerabilities

Sources

Also known as GHSA-8v8q-vg4w-q828.

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