What is CVE-2026-86914?

CVE-2026-86914 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-2026-86914?

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

Information disclosure in Apple macOS

CVE-2026-86914

An information disclosure 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 access sensitive network connection information.

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

Frequently asked questions

What is CVE-2026-86914?: CVE-2026-86914 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-2026-86914?: Medium severity. CVSS v3 base score is 5.5 out of 10.