What is CVE-2026-28823?

CVE-2026-28823 is a medium-severity vulnerability in Apple macOS, classified under Improper Access Control. CVSS score: 4.9/10. Published 2026-03-25.

How severe is CVE-2026-28823?

Medium severity. CVSS v3 base score is 4.9 out of 10.

Vulnerability in Apple macOS

CVE-2026-28823

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.

EPSS: 0.003 (21.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Apple Macos — versions 0

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

product-security@apple.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-28823?: CVE-2026-28823 is a medium-severity vulnerability in Apple macOS, classified under Improper Access Control. CVSS score: 4.9/10. Published 2026-03-25.
How severe is CVE-2026-28823?: Medium severity. CVSS v3 base score is 4.9 out of 10.