CVE-2024-40849
Race Condition in macOS Sequoia Allows Sandbox Escape
Publication date: 2026-04-02
Last updated on: 2026-04-03
Assigner: Apple Inc.
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| apple | macos | to 15.1 (exc) |
Helpful Resources
Exploitability
| 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
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a race condition issue in macOS Sequoia that was addressed by adding additional validation. Due to this flaw, an application may be able to break out of its sandbox, which is a security mechanism designed to isolate apps and limit their access to system resources.
How can this vulnerability impact me? :
If exploited, this vulnerability could allow an application to escape its sandbox restrictions. This means the app could potentially access or modify data and system resources beyond its intended limits, leading to unauthorized actions or data exposure.
What immediate steps should I take to mitigate this vulnerability?
The vulnerability is fixed in macOS Sequoia 15.1. To mitigate this vulnerability, you should update your system to macOS Sequoia 15.1 or later.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
This vulnerability allows an app to potentially break out of its sandbox due to a race condition, which could lead to unauthorized access or exposure of sensitive data.
Such unauthorized access or data exposure could impact compliance with data protection standards and regulations like GDPR and HIPAA, which require strict controls on data confidentiality and integrity.
However, specific details on how this vulnerability affects compliance with these standards are not provided.