What is CVE-2026-20670?

CVE-2026-20670 is a medium-severity vulnerability in Apple macOS. CVSS score: 5.5/10. Published 2026-03-25.

How severe is CVE-2026-20670?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Apple macOS

CVE-2026-20670

An authorization issue was addressed with improved state management. This issue is fixed in macOS Sonoma 14.8.4, macOS Tahoe 26.3. An app may be able to access sensitive user data.

EPSS: 0.001 (2.2th 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

References

product-security@apple.com (Release Notes, Vendor Advisory)
product-security@apple.com (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2026-20670?: CVE-2026-20670 is a medium-severity vulnerability in Apple macOS. CVSS score: 5.5/10. Published 2026-03-25.
How severe is CVE-2026-20670?: Medium severity. CVSS v3 base score is 5.5 out of 10.