CVE-2024-40842 Information disclosure in macOS

What is CVE-2024-40842?

CVE-2024-40842 is a medium-severity vulnerability in Apple Macos, published on 16 Sep 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

An issue was addressed with improved validation of environment variables. This issue is fixed in macOS Sequoia 15. An app may be able to access user-sensitive data.

Weakness: CWE-200

Which versions are affected by CVE-2024-40842?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2024-40842?

No fix has been published for CVE-2024-40842 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-40842 being exploited?

There is no known exploitation of CVE-2024-40842 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

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-rcw8-56q4-fh4w.