CVE-2026-84540 Missing authorization in macOS
An app may access sensitive user data due to an authorization issue in macOS state management.
- 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-2026-84540?
CVE-2026-84540 is a medium-severity missing authorization 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
An authorization issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to access sensitive user data.
Weakness: CWE-863
Which versions are affected by CVE-2026-84540?
It affects 1 product.
Products include Apple Macos.
How do I fix CVE-2026-84540?
No fix has been published for CVE-2026-84540 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-2026-84540 being exploited?
There is no known exploitation of CVE-2026-84540 in the wild and no public exploit code.
Other vulnerabilities in Apple Macos
Sources
Also known as GHSA-pj99-xj25-m8rw.