CVE-2026-43690 Race condition in macOS

Medium 4.7 Published 14 Sep 2026 Updated 26 Oct 2026

A local attacker can exploit a race condition to read kernel memory, potentially exposing sensitive system data.

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-2026-43690?

CVE-2026-43690 is a medium-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

A race condition was addressed with improved locking. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. A local user may be able to read kernel memory.

Weakness: CWE-362

Which versions are affected by CVE-2026-43690?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2026-43690?

No fix has been published for CVE-2026-43690 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-43690 being exploited?

There is no known exploitation of CVE-2026-43690 in the wild and no public exploit code.

All Apple Macos vulnerabilities

Sources

Also known as GHSA-m24h-jq37-hcm2.