Missing authorization in Apple macOS lets apps access sensitive user data
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-862.
Summary
Apple macOS before 26.7.2 and before 27 contains an authorization flaw (CWE-862, missing authorization) that was fixed with improved state management. A local user with low privileges can access sensitive user data, and the attack requires no user interaction.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
An authorization issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Tahoe 26.7.2. An app may be able to access sensitive user data.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Update macOS Tahoe to 26.7.2 and macOS Golden Gate to 27, which are the fixed versions listed for macOS.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA macOS (Apple) Fixed in 26.7.2, 27
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 26.7.2, 27
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-80699 Out-of-bounds write in Apple macOS can crash the systemPriority MEDIUM 49
- TI-2026-80721 Null pointer dereference in Apple OS lets apps crash the systemPriority LOW 24
Timeline
- 2026-10-26 Threatist record created from CVE-2026-43736
- 2026-10-27 Alias added: GHSA-x6f2-2wrr-w5x7
- 2026-10-29 CVSS score added · CISA ADP
- 2026-10-29 Weakness changed · CISA ADP
- 2026-10-29 CISA SSVC decision points changed
References
More Apple Macos vulnerabilities
- TI-2026-46583 Improper authentication in Apple macOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-28008 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
- TI-2025-22441 Apple iOS and iPadOS: An attacker with arbitrary read and write capability may be able to… KEVCVSS 3.1CRITICAL 9.8
- TI-2025-22440 Memory corruption in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
- TI-2025-17951 Out-of-bounds write in Apple Safari KEVCVSS 3.1CRITICAL 10.0
- TI-2025-17847 Use after free in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
Sources
- CVE-2026-43736 · CVE Program
- CVE-2026-43736 · NVD
- FIRST EPSS
- GHSA-x6f2-2wrr-w5x7 · GitHub Advisory Database · CC BY 4.0
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