CVE-2026-28823

Severity: medium (CVSS 4.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% 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-284

Description

A path handling issue was addressed with improved validation. This issue is fixed in macOS Tahoe 26.4. An app with root privileges may be able to delete protected system files.

Affected products

Apple macOS: from 26.0 before 26.4 — fixed in 26.4

How to fix

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

References

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

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