Auth bypass in Apple macOS

CVE-2026-28881

A privacy issue was addressed by moving sensitive data. This issue is fixed in macOS Tahoe 26.4. An app may be able to access sensitive user data.

EPSS: 0.002 (7.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Apple Macos — versions 0

Weakness classification (CWE)

CWE-285 — Improper Authorization

References

product-security@apple.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-28881?: CVE-2026-28881 is a medium-severity vulnerability in Apple macOS, classified under Improper Authorization. CVSS score: 5.5/10. Published 2026-03-25.
How severe is CVE-2026-28881?: Medium severity. CVSS v3 base score is 5.5 out of 10.