CVE-2026-43774: An app may be able to access sensitive user data in Apple macOS
An out-of-bounds read was addressed with improved bounds checking. 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 access sensitive user data.
AI Analysis
Technical Summary
CVE-2026-43774 is an out-of-bounds read vulnerability fixed by improved bounds checking in specific macOS versions. The vulnerability could enable a local attacker, requiring user interaction and no privileges, to read sensitive user data without affecting system integrity or availability. The CVSS 3.1 vector is AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N, indicating a moderate severity level. The issue is resolved in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6.
Potential Impact
An application may exploit this vulnerability to read sensitive user data due to an out-of-bounds read condition. There is no impact on system integrity or availability. The vulnerability requires local access and user interaction but no privileges, making it a moderate confidentiality risk.
Mitigation Recommendations
This vulnerability is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Users and administrators should apply these updates to remediate the issue. No additional mitigation steps are indicated.
CVE-2026-43774: An app may be able to access sensitive user data in Apple macOS
Description
An out-of-bounds read was addressed with improved bounds checking. 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 access sensitive user data.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-43774 is an out-of-bounds read vulnerability fixed by improved bounds checking in specific macOS versions. The vulnerability could enable a local attacker, requiring user interaction and no privileges, to read sensitive user data without affecting system integrity or availability. The CVSS 3.1 vector is AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N, indicating a moderate severity level. The issue is resolved in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6.
Potential Impact
An application may exploit this vulnerability to read sensitive user data due to an out-of-bounds read condition. There is no impact on system integrity or availability. The vulnerability requires local access and user interaction but no privileges, making it a moderate confidentiality risk.
Mitigation Recommendations
This vulnerability is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. Users and administrators should apply these updates to remediate the issue. No additional mitigation steps are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-jg6m-x829-8jxm
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-43774"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6941fc9c2644c7f86cce85
Added to database: 07/28/2026, 23:57:48 UTC
Last enriched: 07/29/2026, 11:09:10 UTC
Last updated: 09/12/2026, 13:45:35 UTC
Views: 93
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