CVE-2026-64731: A malicious app may be able to break out of its sandbox in Apple macOS
A path handling issue was addressed with improved validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Tahoe 26.6. A malicious app may be able to break out of its sandbox.
AI Analysis
Technical Summary
This vulnerability arises from improper path handling in macOS, which could be exploited by a malicious app to escape its sandbox restrictions. Apple fixed this issue by improving path validation in macOS Sequoia 15.7.8 and macOS Tahoe 26.6. The CVSS score of 9.8 reflects that the vulnerability can be exploited remotely without privileges or user interaction, leading to complete compromise of the affected system.
Potential Impact
Successful exploitation allows a malicious application to break out of its sandbox, potentially gaining unauthorized access to system resources and sensitive data, and impacting system confidentiality, integrity, and availability.
Mitigation Recommendations
Apple has released fixes for this vulnerability in macOS Sequoia 15.7.8 and macOS Tahoe 26.6. Users and administrators should update to these versions or later to remediate the issue. Patch status is confirmed by the vendor advisory indicating the issue is fixed in these versions.
CVE-2026-64731: A malicious app may be able to break out of its sandbox in Apple macOS
Description
A path handling issue was addressed with improved validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Tahoe 26.6. A malicious app may be able to break out of its sandbox.
CVSS v3.1
Score 9.8critical
Affected software
Apple
macOS
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from improper path handling in macOS, which could be exploited by a malicious app to escape its sandbox restrictions. Apple fixed this issue by improving path validation in macOS Sequoia 15.7.8 and macOS Tahoe 26.6. The CVSS score of 9.8 reflects that the vulnerability can be exploited remotely without privileges or user interaction, leading to complete compromise of the affected system.
Potential Impact
Successful exploitation allows a malicious application to break out of its sandbox, potentially gaining unauthorized access to system resources and sensitive data, and impacting system confidentiality, integrity, and availability.
Mitigation Recommendations
Apple has released fixes for this vulnerability in macOS Sequoia 15.7.8 and macOS Tahoe 26.6. Users and administrators should update to these versions or later to remediate the issue. Patch status is confirmed by the vendor advisory indicating the issue is fixed in these versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-07-20T18:09:54.848Z
- State
- PUBLISHED
Threat ID: 6a67c1c49c2644c7f8cb1480
Added to database: 07/27/2026, 20:38:28 UTC
Last enriched: 07/29/2026, 23:57:35 UTC
Last updated: 09/11/2026, 22:06:34 UTC
Views: 64
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