CVE-2026-86886
Undergoing Analysis Undergoing Analysis - In Progress

Path Traversal in Apple iOS and iPadOS

Vulnerability report for CVE-2026-86886, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-09-14

Last updated on: 2026-09-18

Assigner: Apple Inc.

Description

A path traversal issue was addressed with improved input validation. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, watchOS 27. An app may be able to modify protected system files.

CVSS Scores

EPSS Scores

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Meta Information

Published
2026-09-14
Last Modified
2026-09-18
Generated
2026-10-05
AI Q&A
2026-09-15
EPSS Evaluated
2026-10-03
NVD

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
apple ipados to 26.7 (exc)
apple iphone_os to 26.7 (exc)
apple watchos to 27.0 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

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Executive Summary

This is a path traversal vulnerability where an app could potentially access or modify files outside its intended directory due to insufficient input validation. The issue was addressed in specific iOS, iPadOS, and watchOS versions.

Detection Guidance

This CVE describes a path traversal issue in Apple iOS, iPadOS, and watchOS that could allow an app to modify protected system files. Detection would require checking for unauthorized file modifications or suspicious app behavior on affected devices. No specific commands are provided in the available context.

Impact Analysis

An attacker could exploit this to modify protected system files, potentially leading to unauthorized changes, data corruption, or system instability on affected devices running vulnerable versions of iOS, iPadOS, or watchOS.

Compliance Impact

The vulnerability allows an app to modify protected system files through path traversal, which could lead to unauthorized access or manipulation of sensitive data. This may impact compliance with standards like GDPR (data integrity) and HIPAA (protected health information integrity) by potentially exposing or altering regulated data.

Mitigation Strategies

Update affected Apple devices to iOS 26.7 or later, iPadOS 26.7 or later, iOS 27 or later, iPadOS 27 or later, or watchOS 27 or later to address the path traversal issue.

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