CVE-2026-28891: Race Condition
802.1X. An authentication issue was addressed with improved state management.
Other sources
A race condition was addressed with additional validation. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.4. An app may be able to break out of its sandbox.
— NVD
Accounts. An authorization issue was addressed with improved state management.
— Apple
Admin Framework. A path handling issue was addressed with improved validation.
— Apple
apache. This is a vulnerability in open source code and Apple Software is among the affected projects. The CVE-ID was assigned by a third party. Learn more about the issue and CVE-ID at cve.org.
— Apple
AppleKeyStore. A use after free issue was addressed with improved memory management.
— Apple
Credit
Affected Software
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2026-28865
- CVE-2026-28877
- CVE-2025-55753
- CVE-2025-58098
- CVE-2025-59775
- CVE-2025-65082
- CVE-2025-66200
- CVE-2026-20637
- CVE-2026-28824
- CVE-2026-20699
- CVE-2026-28879
- CVE-2026-28822
- CVE-2026-28894
- CVE-2026-20660
- CVE-2026-28866
- CVE-2026-20639
- CVE-2026-20690
- CVE-2026-28821
- CVE-2026-28838
- CVE-2026-28886
- CVE-2026-28888
- CVE-2025-14524
- CVE-2026-20633
- CVE-2026-28876
- CVE-2026-28892
- CVE-2026-28832
- CVE-2026-20668
- CVE-2026-28834
- CVE-2026-28880
- CVE-2025-64505
- CVE-2026-28868
- CVE-2026-28867
- CVE-2026-20695
- CVE-2026-20687
- CVE-2026-28829
- CVE-2026-20607
- CVE-2026-20692
- CVE-2026-20651
- CVE-2026-20694
- CVE-2026-28891
- CVE-2026-20701
- CVE-2026-28839
- CVE-2026-28827
- CVE-2026-28816
- CVE-2026-28826
- CVE-2026-20693
- CVE-2026-28862
- CVE-2026-28831
- CVE-2026-28817
- CVE-2026-20688
- CVE-2026-28864
- CVE-2026-28860
- CVE-2026-28835
- CVE-2026-28825
- CVE-2026-28818
- CVE-2026-20697
- CVE-2026-28828
- CVE-2026-28852
- CVE-2026-20657
- CVE-2026-28878
- CVE-2026-28823
- CVE-2026-20696
- CVE-2026-20684
- CVE-2026-28910
- CVE-2026-28893
- CVE-2026-28870
- CVE-2026-28881
- CVE-2026-28833
- CVE-2026-28842
- CVE-2026-28841
- CVE-2026-20698
- CVE-2026-28845
- CVE-2026-28882
- CVE-2026-20632
- CVE-2026-20631
- CVE-2026-28840
- CVE-2026-28830
- CVE-2026-28820
- CVE-2026-28837
- CVE-2026-28844
- CVE-2026-20665
- CVE-2026-20643
- CVE-2026-28871
- CVE-2026-20664
- CVE-2026-28857
- CVE-2026-28861
- CVE-2026-28859
- CVE-2026-20691
Frequently Asked Questions
What is the severity of CVE-2026-28891?
CVE-2026-28891 is considered a significant vulnerability due to its potential to allow an app to break out of its sandbox.
How do I fix CVE-2026-28891?
To fix CVE-2026-28891, upgrade to macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, or macOS Tahoe 26.4.
Which versions of macOS are affected by CVE-2026-28891?
CVE-2026-28891 affects macOS versions prior to 15.7.5 for Sequoia, 14.8.5 for Sonoma, and 26.4 for Tahoe.
What type of issue is CVE-2026-28891?
CVE-2026-28891 addresses an authentication issue related to improved state management and race conditions.
Is there a workaround for CVE-2026-28891 before updating?
No specific workaround is recommended for CVE-2026-28891; updating to the fixed versions is advised.