CVE-2026-43763: An app may be able to read files outside of its sandbox in Apple macOS
A permissions issue was addressed by removing the vulnerable code. 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 read files outside of its sandbox.
AI Analysis
Technical Summary
This vulnerability in Apple macOS involves a permissions flaw that could allow an application to read files outside its designated sandbox environment. The issue was resolved by removing the vulnerable code in specific macOS versions: Sequoia 15.7.8, Sonoma 14.8.8, and Tahoe 26.6. The CVSS 3.1 base score is 5.5, reflecting a medium impact with local attack vector, low complexity, no privileges required, and user interaction needed. Confidentiality impact is high, while integrity and availability are not affected.
Potential Impact
An attacker with local access and the ability to trick a user into interacting with a malicious app could read files outside the app's sandbox, potentially exposing sensitive information. There is no impact on system integrity or availability. No known exploits are reported in the wild.
Mitigation Recommendations
The vulnerability is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Users and administrators should update affected macOS installations to these or later versions to remediate the issue. No additional mitigation steps are indicated by the vendor.
CVE-2026-43763: An app may be able to read files outside of its sandbox in Apple macOS
Description
A permissions issue was addressed by removing the vulnerable code. 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 read files outside of its sandbox.
CVSS v3.1
Score 5.5medium
Affected software
Apple
macOS
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Apple macOS involves a permissions flaw that could allow an application to read files outside its designated sandbox environment. The issue was resolved by removing the vulnerable code in specific macOS versions: Sequoia 15.7.8, Sonoma 14.8.8, and Tahoe 26.6. The CVSS 3.1 base score is 5.5, reflecting a medium impact with local attack vector, low complexity, no privileges required, and user interaction needed. Confidentiality impact is high, while integrity and availability are not affected.
Potential Impact
An attacker with local access and the ability to trick a user into interacting with a malicious app could read files outside the app's sandbox, potentially exposing sensitive information. There is no impact on system integrity or availability. No known exploits are reported in the wild.
Mitigation Recommendations
The vulnerability is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Users and administrators should update affected macOS installations to these or later versions to remediate the issue. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:27.817Z
- State
- PUBLISHED
Threat ID: 6a67c1b89c2644c7f8cb0f30
Added to database: 07/27/2026, 20:38:16 UTC
Last enriched: 07/29/2026, 23:53:29 UTC
Last updated: 09/11/2026, 22:06:33 UTC
Views: 54
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