TI-2026-23095 Aliases CVE-2026-28910 GHSA-gjq4-3jcx-r8xf

Improper access control in Apple macOS

LOW 15CWE-284Published 2026-05-11 · Updated 2026-05-12

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-284.

Summary

This issue was addressed with improved permissions checking. This issue is fixed in macOS Tahoe 26.4. A malicious app may be able to access arbitrary files.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00119 1st percentileScored 2026-11-07

Fix Fixed macOS (Apple): 26.4

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

Vendor	Product	Affected versions	Fixed in	Status	Source
Apple	macOS	before 26.4	26.4	Patch available	CNA

macOS VendorApple Affected before 26.4 Fixed in 26.4 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:apple:macos::::::::	26.0 to before 26.4	Vulnerable	Apple

cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 26.0 to before 26.4 Vulnerable ·Apple

Remediation

Fix · CNA macOS (Apple) Fixed in 26.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-05-11
Apple macOS 26.4
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-23024 Race condition in Apple macOSPriority LOW 20
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-28910
2026-10-03 Alias added: GHSA-gjq4-3jcx-r8xf

References

Advisory 1

https://support.apple.com/en-us/126794

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

See all 3490 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences