CVE-2026-84534

Undergoing Analysis Undergoing Analysis - In Progress

Path Traversal in Apple iOS and macOS

Publication date: 2026-09-14

Last updated on: 2026-09-15

Assigner: Apple Inc.

Description

A path handling issue was addressed with improved validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. Extracting a maliciously crafted archive may allow an attacker to write arbitrary files.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-14

Last Modified

2026-09-15

Generated

2026-10-05

AI Q&A

2026-09-15

EPSS Evaluated

2026-10-04

NVD

CVE-2026-84534

Affected Vendors & Products

Vendor	Product	Version / Range
apple	ios	26.7
apple	ipados	26.7
apple	ios	27
apple	ipados	27
apple	macos_golden_gate	27
apple	macos_sequoia	15.8
apple	macos_tahoe	26.7
apple	visionos	27

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-22	The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

Attack-Flow Graph

Executive Summary

This is a path handling vulnerability where maliciously crafted archives could allow an attacker to write arbitrary files during extraction. It was addressed with improved validation in specific Apple operating system versions.

Detection Guidance

This vulnerability involves a path handling issue in archive extraction that could allow arbitrary file writes. Detection would require checking for unusual file writes or suspicious archive extractions on systems running vulnerable Apple OS versions. Monitor for unexpected files in system directories or user home folders. Review logs for archive extraction operations, especially from untrusted sources.

Impact Analysis

If you extract a malicious archive on a vulnerable system, an attacker could write arbitrary files to your device. This could lead to unauthorized code execution, data corruption, or further compromise of your system.

Compliance Impact

The provided CVE data does not specify direct impacts on compliance with standards like GDPR or HIPAA. The vulnerability involves a path handling issue allowing arbitrary file writes during archive extraction, which could potentially lead to unauthorized data access or modification. However, explicit compliance implications are not detailed in the given context.

Mitigation Strategies

Update affected Apple devices to the latest versions: iOS 26.7 or later, iPadOS 26.7 or later, iOS 27 or later, iPadOS 27 or later, macOS Golden Gate 27 or later, macOS Sequoia 15.8 or later, macOS Tahoe 26.7 or later, visionOS 27 or later.

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