CVE-2026-43728 Race condition in macOS

What is CVE-2026-43728?

CVE-2026-43728 is a high-severity vulnerability in Apple Macos, published on 27 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

This issue was addressed through improved state management. This issue is fixed in macOS Tahoe 26.6. An attacker may be able to modify the state of the Keychain.

Weakness: CWE-362

Which versions are affected by CVE-2026-43728?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2026-43728?

No fix has been published for CVE-2026-43728 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-43728 being exploited?

There is no known exploitation of CVE-2026-43728 in the wild and no public exploit code.

Other vulnerabilities in Apple Macos

• CVE-2026-65400 Apple macOS Improper Authentication Exploited Critical 9.8
• CVE-2024-44146 Security feature bypass in macOS Critical 10.0
• CVE-2024-44148 Security feature bypass in macOS Critical 10.0
• CVE-2023-38586 Security feature bypass in macOS Critical 10.0
• CVE-2023-40455 Security feature bypass in macOS Critical 10.0

All Apple Macos vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-vp3q-rvxq-x2ff.