CVE-2026-84555 Missing authorization in macOS
An app can access sensitive user data due to an authorization issue in macOS, requiring a system update to fix.
- 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-2026-84555?
CVE-2026-84555 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, and only if a user opens a file or follows a link.
Official description
An authorization issue was addressed with improved access control. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8. An app may be able to access sensitive user data.
Weakness: CWE-284
Which versions are affected by CVE-2026-84555?
It affects 1 product.
Products include Apple Macos.
How do I fix CVE-2026-84555?
No fix has been published for CVE-2026-84555 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-2026-84555 being exploited?
There is no known exploitation of CVE-2026-84555 in the wild and no public exploit code.
Other vulnerabilities in Apple Macos
Sources
Also known as GHSA-53hq-q5v4-hj4c.