CVE-2026-43770

Undergoing Analysis Undergoing Analysis - In Progress

Race Condition in macOS Sequoia 15.7.8

Publication date: 2026-07-27

Last updated on: 2026-07-29

Assigner: Apple Inc.

Description

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

CVSS Scores

EPSS Scores

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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-2026-43770

EUVD

EUVD-2026-49545

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)
apple	tvos	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 vulnerability was fixed in Apple operating systems. This flaw could allow an app to access sensitive user data due to improper validation during concurrent operations.

Detection Guidance

This vulnerability is a race condition in Apple operating systems that may allow an app to access sensitive user data. Detection requires checking if your system is running a vulnerable version of macOS or tvOS. Use system_profiler SPSoftwareDataType on macOS or sw_vers on Terminal to check your OS version. If your version is below the fixed releases (macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, or tvOS 26.6), the system is vulnerable.

Impact Analysis

If exploited, this vulnerability could let a malicious app access your private data, such as files, messages, or other sensitive information stored on your device.

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 compliance requirements under GDPR (data protection) and HIPAA (health information privacy) if such data includes personal or protected health information.

Mitigation Strategies

Update affected systems to the latest patched versions: macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, or tvOS 26.6 to address the race condition vulnerability.

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