CVE-2026-20667

HIGH

iPadOS < 26.3 - Sandbox Escape via Logic Issue

Title source: llm
STIX 2.1

Description

A logic issue was addressed with improved checks. This issue is fixed in iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, watchOS 26.3. An app may be able to break out of its sandbox.

References (5)

Core 5
Core References
Release Notes, Vendor Advisory
https://support.apple.com/en-us/126346
Release Notes, Vendor Advisory
https://support.apple.com/en-us/126348
Release Notes, Vendor Advisory
https://support.apple.com/en-us/126349
Release Notes, Vendor Advisory
https://support.apple.com/en-us/126350
Release Notes, Vendor Advisory
https://support.apple.com/en-us/126352

Scores

CVSS v3 8.8
EPSS 0.0013
EPSS Percentile 3.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-693
Status published
Products (9)
Apple/iOS and iPadOS < 26.3
apple/ipados < 26.3
apple/iphone_os < 26.3
apple/macos < 14.8.4
Apple/macOS < 14.8.4
Apple/macOS < 15.7.4
Apple/macOS < 26.3
apple/watchos < 26.3
Apple/watchOS < 26.3
Published Feb 11, 2026
Tracked Since Feb 18, 2026