CVE-2026-20688

CRITICAL | Platform: macOS | Changelog

CVE Details

Description

A path handling issue was addressed with improved validation. This issue is fixed in iOS 26.4 and iPadOS 26.4, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4, visionOS 26.4. An app may be able to break out of its sandbox.

CVSS 3.1 Score

Metric	Value
Base Score	9.3 (CRITICAL)
Vector	`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`

Weakness

CWE-22

References

Apple Security Advisory
NVD Entry
https://support.apple.com/en-us/126792 (Release Notes, Vendor Advisory)
https://support.apple.com/en-us/126794 (Release Notes, Vendor Advisory)
https://support.apple.com/en-us/126796 (Release Notes, Vendor Advisory)
https://support.apple.com/en-us/126799 (Release Notes, Vendor Advisory)