CVE-2026-20683: Apple iPadOS

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Apple iPadOS: before 27.0 (fixed in 27.0)
• Apple iPhone OS: before 27.0 (fixed in 27.0)
• Apple macOS: from 15.0, before 15.8 (fixed in 15.8); from 26.0, before 26.7 (fixed in 26.7)
• Apple visionOS: before 27.0 (fixed in 27.0)

Published 2026-09-14. Last modified 2026-09-17.