CVE-2023-42891 Information disclosure in macOS

Medium 5.5 Published 12 Dec 2023 Updated 4 Nov 2025

An app can monitor keystrokes without user permission, allowing attackers to capture sensitive input data on macOS systems.

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-2023-42891?

CVE-2023-42891 is a medium-severity vulnerability in Apple Macos, published on 12 Dec 2023. 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 authentication issue was addressed with improved state management. This issue is fixed in macOS Sonoma 14.2, macOS Ventura 13.6.3, macOS Monterey 12.7.2. An app may be able to monitor keystrokes without user permission.

Which versions are affected by CVE-2023-42891?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2023-42891?

No fix has been published for CVE-2023-42891 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-42891 being exploited?

There is no known exploitation of CVE-2023-42891 in the wild and no public exploit code.

All Apple Macos vulnerabilities

Sources

Also known as GHSA-3895-33gv-76p5.