CVE-2026-43781

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Race Condition in macOS Leading to Sensitive Data Exposure

Publication date: 2026-07-27

Last updated on: 2026-07-30

Assigner: Apple Inc.

Description

A race condition was addressed with improved state handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to access sensitive user data.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-27

Last Modified

2026-07-30

Generated

2026-08-17

AI Q&A

2026-07-28

EPSS Evaluated

2026-08-15

NVD

CVE-2026-43781

EUVD

EUVD-2026-49616

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	From 14.0 (inc) to 14.8.8 (exc)
apple	macos	From 15.0 (inc) to 15.7.8 (exc)
apple	macos	From 26.0 (inc) to 26.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-362	The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.

Attack-Flow Graph

Executive Summary

A race condition in macOS was fixed where an app could potentially access sensitive user data due to improper state handling. This flaw was resolved in specific macOS versions.

Detection Guidance

This vulnerability is a race condition in macOS that may allow apps to access sensitive user data. Detection requires checking if your macOS version is vulnerable and monitoring for unusual app behavior. Use 'sw_vers' to check your macOS version. If it is below Sequoia 15.7.8, Sonoma 14.8.8, or Tahoe 26.6, the system is vulnerable.

Impact Analysis

An attacker could exploit this to access your private data if they run a malicious app on your device. It may allow unauthorized access to sensitive information stored on your system.

Compliance Impact

The vulnerability allows an app to access sensitive user data due to a race condition, which could lead to unauthorized data exposure. This may violate GDPR's data protection principles and HIPAA's safeguards for protected health information if exploited.

Mitigation Strategies

Update to the latest patched versions of macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, or macOS Tahoe 26.6 to address the race condition issue.

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