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.
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://support.apple.com/en-us/127111 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127115 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127116 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127117 Release Notes, Vendor Advisory
STIG rules that mitigate this class
With Gatekeeper enforced, an unsigned or unnotarised app does not run, which is the step most Gatekeeper bypasses need. Apple Platform Security, "Gatekeeper and runtime protection in macOS" (the owner's mapping, data/mitigations.yaml: gatekeeper)
- APPL-15-002064 CAT I The macOS system must enable gatekeeper. Apple macOS 15 (Sequoia)
- APPL-26-002064 CAT I The macOS system must enable gatekeeper. Apple macOS 26 (Tahoe)
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.5 · appleNVD modified 2026-10-26 18:10
Affected (CPE criteria) 3
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
References 4
- https://support.apple.com/en-us/127111 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127115 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127116 Release Notes, Vendor Advisory
- https://support.apple.com/en-us/127117 Release Notes, Vendor Advisory