CVE-2026-20683highCWE-287

CVE-2026-20683: high-severity vulnerability in Apple macOS

Published 14 Sep 2026 · Updated 26 Oct 2026

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21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.1epss 0.2%

An authentication issue was addressed with improved state management. This issue is fixed in iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7, visionOS 27. An app may be able to use the Sign In With Apple authentication flow to access the user's Apple Account.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Affected products

Apple · iOS and iPadOS Apple · macOS Apple · visionOS

Related CVEs — Apple macOS

In the same product, most dangerous first.

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References

https://support.apple.com/en-us/149034 https://support.apple.com/en-us/149035 https://support.apple.com/en-us/149038 https://support.apple.com/en-us/149042 https://support.apple.com/en-us/149043