CVE-2026-28899 Security feature bypass in macOS
An application can bypass Gatekeeper security checks on macOS, allowing potentially malicious software to run without proper verification.
- 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-2026-28899?
CVE-2026-28899 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, and only if a user opens a file or follows a link.
Official description
A logic issue was addressed with improved checks. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.6, macOS Tahoe 26.7. An app may bypass Gatekeeper checks.
Weakness: CWE-693
Which versions are affected by CVE-2026-28899?
It affects 1 product.
Products include Apple Macos.
How do I fix CVE-2026-28899?
No fix has been published for CVE-2026-28899 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-28899 being exploited?
There is no known exploitation of CVE-2026-28899 in the wild and no public exploit code.
Other vulnerabilities in Apple Macos
Sources
Also known as GHSA-8c8f-8rq7-f6jr.