CVE-2026-43800

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Information Disclosure in Apple iOS and macOS

Publication date: 2026-07-27

Last updated on: 2026-07-29

Assigner: Apple Inc.

Description

An information disclosure issue was addressed by removing the vulnerable code. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, watchOS 26.6. An app may be able to access sensitive user data.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-27

Last Modified

2026-07-29

Generated

2026-08-17

AI Q&A

2026-07-28

EPSS Evaluated

2026-08-15

NVD

CVE-2026-43800

EUVD

EUVD-2026-49504

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	From 26.0 (inc) to 26.6 (exc)
apple	ipados	to 26.6 (exc)
apple	iphone_os	to 26.6 (exc)
apple	tvos	to 26.6 (exc)
apple	watchos	to 26.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

Executive Summary

This is an information disclosure vulnerability where an app could potentially access sensitive user data due to a flaw in the code. Apple addressed it by removing the vulnerable code in specific software updates.

Detection Guidance

This vulnerability is addressed by removing the vulnerable code in specific Apple OS updates. Detection involves checking if your devices are running updated versions of iOS, iPadOS, macOS Tahoe, tvOS, or watchOS. No specific commands are provided for detection as the issue is resolved by applying the patches.

Impact Analysis

If exploited, this vulnerability could allow an app to access your private data without your permission. This might include personal information, login credentials, or other sensitive details stored on your device.

Compliance Impact

The vulnerability allows an app to access sensitive user data, which could lead to unauthorized data exposure. This may violate compliance requirements under GDPR (data protection) and HIPAA (health information privacy) if such data includes personal or health-related information.

Mitigation Strategies

Update affected Apple devices to iOS 26.6, iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, or watchOS 26.6 or later to address the information disclosure issue.

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