Logic Issue in Apple Products Allows Potential Sandbox Breakout
CVE-2026-20667

8.8HIGH

Key Information:

Vendor

Apple
Status
Mac OS
Watch OS
iOS And iPad OS
Vendor
CVE Published:
11 February 2026

What is CVE-2026-20667?

A logic issue in various Apple operating systems was identified that could potentially allow applications to escape their sandbox environments. This could lead to unauthorized access to system resources or user data. Apple has addressed this vulnerability with improved validation checks in the latest updates of watchOS, macOS, iOS, and iPadOS. Users are advised to update their devices to the latest versions to mitigate this risk.

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Affected Version(s)

iOS and iPadOS < 26.3

macOS < 26.3

macOS < 15.7

References

https://support.apple.com/en-us/126348
https://support.apple.com/en-us/126352
https://support.apple.com/en-us/126349

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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