Vulnerability Description
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.
CVSS Score
8.1
HIGH
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Apple | Macos | >= 14.0, < 14.8.5 |
Related Weaknesses (CWE)
References
- https://support.apple.com/en-us/126794Release NotesVendor Advisory
- https://support.apple.com/en-us/126795Release NotesVendor Advisory
- https://support.apple.com/en-us/126796Release NotesVendor Advisory
FAQ
What is CVE-2026-28891?
CVE-2026-28891 is a vulnerability with a CVSS score of 8.1 (HIGH). 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.
How severe is CVE-2026-28891?
CVE-2026-28891 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-28891?
Check the references section above for vendor advisories and patch information. Affected products include: Apple Macos.