CVE-2026-84508

Analyzed Analyzed - Analysis Complete

Improper Access Control in Apple iOS and macOS

Publication date: 2026-10-20

Last updated on: 2026-11-03

Assigner: Apple Inc.

Description

This issue was addressed with improved validation of the caller's access. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Tahoe 26.7, visionOS 27. An app may be able to access protected user data.

CVSS Scores

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Meta Information

Published

2026-10-20

Last Modified

2026-11-03

Generated

2026-11-09

AI Q&A

2026-10-20

EPSS Evaluated

2026-11-07

NVD

CVE-2026-84508

EUVD

EUVD-2026-104704

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	to 26.7 (exc)
apple	ipados	to 27.0 (exc)
apple	iphone_os	to 27.0 (exc)
apple	visionos	to 27.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

This vulnerability involves an app being able to access protected user data due to insufficient validation of the caller's access permissions. It affects multiple Apple operating systems including iOS, iPadOS, macOS, and visionOS.

Detection Guidance

This vulnerability is specific to Apple operating systems and involves improper access validation. Detection requires checking for unauthorized data access attempts by apps on affected systems. No direct commands are provided in the context to detect this issue.

Impact Analysis

An attacker could exploit this to gain unauthorized access to sensitive user data stored on the device, potentially leading to privacy breaches or data theft.

Compliance Impact

This vulnerability could lead to non-compliance with data protection regulations such as GDPR or HIPAA by allowing unauthorized access to personal or sensitive health information.

Mitigation Strategies

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

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