What is CVE-2026-84535?

CVE-2026-84535 is a high-severity vulnerability in Apple macOS, classified under Improper Access Control. CVSS score: 8.2/10. Published 2026-09-14.

How severe is CVE-2026-84535?

High severity. CVSS v3 base score is 8.2 out of 10.

Vulnerability in Apple macOS

CVE-2026-84535

An authorization issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to break out of its sandbox.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N.

Affected products

Apple Macos

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

product-security@apple.com
product-security@apple.com
product-security@apple.com

Frequently asked questions

What is CVE-2026-84535?: CVE-2026-84535 is a high-severity vulnerability in Apple macOS, classified under Improper Access Control. CVSS score: 8.2/10. Published 2026-09-14.
How severe is CVE-2026-84535?: High severity. CVSS v3 base score is 8.2 out of 10.