CVE-2026-28900

Received Received - Intake

File Quarantine Bypass in macOS ZIP Archives

Publication date: 2026-07-27

Last updated on: 2026-07-27

Assigner: Apple Inc.

Description

A file quarantine bypass was addressed with additional checks. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. A maliciously crafted ZIP archive may bypass Gatekeeper checks.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-27

Last Modified

2026-07-27

Generated

2026-07-28

AI Q&A

2026-07-28

EPSS Evaluated

N/A

NVD

CVE-2026-28900

EUVD

EUVD-2026-49445

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos_sequoia	15.7.8
apple	macos_sonoma	14.8.8

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability involves a file quarantine bypass in macOS where a maliciously crafted ZIP archive could evade Gatekeeper checks. Gatekeeper is a macOS security feature that verifies apps before allowing them to run. The issue was fixed in macOS Sequoia 15.7.8 and macOS Sonoma 14.8.8 with additional checks to prevent such bypasses.

Impact Analysis

This vulnerability could allow an attacker to bypass macOS security checks and execute malicious software on your system. If you unzip a specially crafted ZIP file, the contained malware might run without macOS blocking it, potentially leading to data theft, system compromise, or further malware installation.

Mitigation Strategies

Update to macOS Sequoia 15.7.8 or macOS Sonoma 14.8.8 or later to address the file quarantine bypass issue.

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