CVE-2026-86888

Analyzed Analyzed - Analysis Complete

Persistent Account Identifier Read in Apple iOS and macOS

Publication date: 2026-09-14

Last updated on: 2026-09-21

Assigner: Apple Inc.

Description

A permissions issue was addressed with additional restrictions. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Tahoe 26.7, tvOS 27, visionOS 27, watchOS 27. A local app may be able to read a persistent account identifier.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-09-14

Last Modified

2026-09-21

Generated

2026-10-05

AI Q&A

2026-09-15

EPSS Evaluated

2026-10-04

NVD

CVE-2026-86888

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)
apple	watchos	to 27.0 (exc)
apple	tvos	to 27.0 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-269	The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.

Attack-Flow Graph

Executive Summary

This is a permissions issue where a local app could read a persistent account identifier. It was fixed in multiple Apple operating systems including iOS 27, macOS versions, and others.

Detection Guidance

This vulnerability is specific to Apple operating systems and relates to a permissions issue allowing local apps to read a persistent account identifier. Detection would require checking system logs or app behavior for unauthorized access to account identifiers on affected devices running versions prior to iOS 27, iPadOS 27, macOS Golden Gate 27, macOS Tahoe 26.7, tvOS 27, visionOS 27, or watchOS 27.

Impact Analysis

A malicious local app could access your persistent account identifier, potentially allowing tracking or linking of your activity across services without your consent.

Compliance Impact

The vulnerability involves a local app potentially reading a persistent account identifier, which could lead to unauthorized access to user data. This may impact compliance with GDPR by violating data protection principles if user consent or data minimization is not ensured. For HIPAA, it could risk exposing protected health information if the identifier is linked to such data.

Mitigation Strategies

Update affected Apple devices to the latest versions mentioned in the CVE description to address the permissions issue and prevent local apps from reading persistent account identifiers.

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