CVE-2026-39871 Information disclosure in macOS

What is CVE-2026-39871?

CVE-2026-39871 is a high-severity vulnerability in Apple Macos, published on 11 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A path handling issue was addressed with improved logic. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. An app may be able to observe unprotected user data.

Weakness: CWE-552

Which versions are affected by CVE-2026-39871?

It affects 1 product.

Products include Apple Macos.

How do I fix CVE-2026-39871?

No fix has been published for CVE-2026-39871 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-39871 being exploited?

There is no known exploitation of CVE-2026-39871 in the wild and no public exploit code.

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-96r9-8crr-vwwp.