Information disclosure in Apple macOS

CVE-2026-86979

A privacy issue was addressed with improved checks. This issue is fixed in macOS Golden Gate 27. An app may be able to access sensitive user data.

Vulnerability class: Information Disclosure

Published 2026-10-20 · last modified 2026-10-20.

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.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Apple macOS

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

support.apple.com/en-us/149035

Frequently asked questions

What is CVE-2026-86979?: CVE-2026-86979 is a medium-severity vulnerability in Apple macOS, classified under Information Disclosure. CVSS score: 5.5/10. Published 2026-10-20.
How severe is CVE-2026-86979?: Medium severity. CVSS v3 base score is 5.5 out of 10.