CVE-2026-28954
File Quarantine Bypass in Apple macOS and iOS
Publication date: 2026-05-11
Last updated on: 2026-05-11
Assigner: Apple Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| apple | ios | 18.7.9 |
| apple | ipad_os | 18.7.9 |
| apple | macos_sequoia | 15.7.7 |
| apple | macos_sonoma | 14.8.7 |
| apple | macos_tahoe | 26.5 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability involves a file quarantine bypass in Apple operating systems. Specifically, a maliciously crafted disk image can bypass Gatekeeper checks, which are security mechanisms designed to prevent untrusted software from running. The issue was addressed by adding additional checks and fixed in iOS 18.7.9, iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, and macOS Tahoe 26.5.
How can this vulnerability impact me? :
This vulnerability could allow an attacker to bypass security controls that normally prevent untrusted or malicious software from executing on Apple devices. By exploiting this flaw with a specially crafted disk image, malicious code could run without being blocked by Gatekeeper, potentially leading to unauthorized actions or compromise of the affected system.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, update your Apple devices to the fixed versions: iOS 18.7.9, iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, or macOS Tahoe 26.5.