CVE-2026-39871

High

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductApple Macos
PublishedMay 11, 2026
First seenMay 11, 2026
Weakness typeCWE-552CWE-552

How to fix

Update
  • apple macos14.8.7, 15.7.7, 26.5 or later

Affected products

ProductAffected versionsFixed in
apple macos14.0 ≤ v < 14.8.7, 15.0 ≤ v < 15.7.7, 26.0 ≤ v < 26.514.8.7, 15.7.7, 26.5

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CVE-2026-39871 · Apple Macos · Dark Radar