CVE-2026-28821

Severity: high (CVSS 8.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-25 · updated 2026-06-17
Weakness: CWE-20

Description

A validation issue existed in the entitlement verification. This issue was addressed with improved validation of the process entitlement. 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 gain elevated privileges.

Affected products

Apple macOS: from 14.0 before 14.8.5; from 15.0 before 15.7.5; from 26.0 before 26.4 — fixed in 14.8.5, 15.7.5, 26.4

How to fix

Upgrade to a fixed version: Apple macOS 14.8.5, 15.7.5, 26.4. Check the vendor advisory for mitigations.

References

https://support.apple.com/en-us/126794
https://support.apple.com/en-us/126795
https://support.apple.com/en-us/126796

Get alerted when CVE-2026-28821 or the next vulnerability affects your stack