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.
History

Tue, 12 May 2026 17:30:00 +0000

Type Values Removed Values Added
First Time appeared Apple ipados
Apple iphone Os
CPEs cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Vendors & Products Apple ipados
Apple iphone Os

Tue, 12 May 2026 16:45:00 +0000

Type Values Removed Values Added
Title Gatekeeper Disk Image Quarantine Bypass Allowing Execution of Malicious Binaries

Tue, 12 May 2026 15:45:00 +0000

Type Values Removed Values Added
Title Gatekeeper Quarantine Bypass via Malicious Disk Images
Weaknesses CWE-285
CWE-640

Tue, 12 May 2026 13:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-290
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 11 May 2026 22:30:00 +0000

Type Values Removed Values Added
Title Gatekeeper Quarantine Bypass via Malicious Disk Images
Weaknesses CWE-285
CWE-640

Mon, 11 May 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple macos
Vendors & Products Apple
Apple ios And Ipados
Apple macos

Mon, 11 May 2026 20:45:00 +0000

Type Values Removed Values Added
Description 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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published: 2026-05-11T20:07:45.658Z

Updated: 2026-05-12T13:05:06.904Z

Reserved: 2026-03-03T16:36:03.990Z

Link: CVE-2026-28954

cve-icon Vulnrichment

Updated: 2026-05-12T13:04:55.757Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-11T21:18:56.467

Modified: 2026-05-12T17:21:41.890

Link: CVE-2026-28954

cve-icon Redhat

No data.