Gatekeeper Quarantine Bypass in iOS/iPadOS 18.7.9 & macOS 26.5/15.7.7/14.8.7
CVE-2026-28954 Published on May 11, 2026
A file quarantine bypass was addressed with additional checks. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. A maliciously crafted disk image may bypass Gatekeeper checks.
Vulnerability Analysis
CVE-2026-28954 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
Authentication Bypass by Spoofing
This attack-focused weakness is caused by improperly implemented authentication schemes that are subject to spoofing attacks.
Products Associated with CVE-2026-28954
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Affected Versions
Apple iOS and iPadOS:- Before 18.7.9 is affected.
- Before 14.8.7 is affected.
- Before 15.7.7 is affected.
- Before 26.5 is affected.