What’s Vulnerable › Vulnerabilities

CVE-2026-20683

• Severity: high (CVSS 7.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-14 · updated 2026-10-26
• Weakness: CWE-287

Description

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; from 26.0 before 26.7 — fixed in 15.8, 26.7
• Apple visionOS: before 27.0 — fixed in 27.0
• Apple iOS and iPadOS: before 27 — fixed in 27
• Apple macOS: before 15.8; before 26.7; before 27 — fixed in 15.8, 26.7, 27
• Apple visionOS: before 27 — fixed in 27

How to fix

Upgrade to a fixed version: Apple iPadOS 27.0; Apple Iphone Os 27.0; Apple macOS 15.8, 26.7; Apple visionOS 27.0; Apple iOS and iPadOS 27; Apple macOS 15.8, 26.7, 27; Apple visionOS 27. Check the vendor advisory for mitigations.

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

Get alerted when CVE-2026-20683 or the next vulnerability affects your stack