AppleCVE-2026-84586

Apple macOS: information disclosure

CVE-2026-84586 · Published Sep 14, 2026 · updated Sep 17, 2026

Medium5.5

Fix: upgrade to 27 or later (2 fixed versions below)

An information disclosure issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, watchOS 27. A malicious application may be able to leak sensitive user information.

Affected versions

Package	Affected	Fixed in
macOS Product	< 27	27
watchOS Product	< 27	27

Details and references

CVSS 3.1: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Severity from: CISA (its enrichment of the CVE record)
Weakness: CWE-200

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Apple iOS and iPadOS: improper access controlCVE-2026-86905fixed in 27 +2 Medium 4.4Sep 14

Apple macOS: protection mechanism failureCVE-2026-86909fixed in 27 Medium 5.5Sep 14

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