CVE-2026-43791: An app may be able to read arbitrary files in Apple macOS
CVE-2026-43791 is a vulnerability in Apple macOS where an application may be able to read arbitrary files due to insufficient input validation. The issue was addressed by improved input sanitization and fixed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
AI Analysis
Technical Summary
This vulnerability arises from a validation issue in macOS that could allow an app to read arbitrary files on the system. Apple fixed the issue by enhancing input sanitization in specific macOS versions: Golden Gate 27, Sequoia 15.8, and Tahoe 26.7. Versions prior to these releases are affected.
Potential Impact
An attacker who can run an app on the affected macOS versions may be able to read arbitrary files, potentially exposing sensitive information. There is no indication of active exploitation in the wild.
Mitigation Recommendations
Apply the official fixes by updating macOS to Golden Gate 27, Sequoia 15.8, or Tahoe 26.7 or later. These updates include improved input sanitization that resolves the vulnerability.
CVE-2026-43791: An app may be able to read arbitrary files in Apple macOS
Description
CVE-2026-43791 is a vulnerability in Apple macOS where an application may be able to read arbitrary files due to insufficient input validation. The issue was addressed by improved input sanitization and fixed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Affected software
Apple
macOS
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability arises from a validation issue in macOS that could allow an app to read arbitrary files on the system. Apple fixed the issue by enhancing input sanitization in specific macOS versions: Golden Gate 27, Sequoia 15.8, and Tahoe 26.7. Versions prior to these releases are affected.
Potential Impact
An attacker who can run an app on the affected macOS versions may be able to read arbitrary files, potentially exposing sensitive information. There is no indication of active exploitation in the wild.
Mitigation Recommendations
Apply the official fixes by updating macOS to Golden Gate 27, Sequoia 15.8, or Tahoe 26.7 or later. These updates include improved input sanitization that resolves the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:27.820Z
- State
- PUBLISHED
Threat ID: 6aa860f555bf5e2cf59d23b3
Added to database: 09/14/2026, 21:02:45 UTC
Last enriched: 09/14/2026, 22:24:47 UTC
Last updated: 09/15/2026, 01:48:39 UTC
Views: 4
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