Advisoriesby IbisAppleCVE-2026-20683
Apple iOS and iPadOS: improper authentication
Fix: upgrade to 27 or later (3 fixed versions below)
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 versions
| Package | Affected | Fixed in |
|---|---|---|
| iOS and iPadOS Product | < 27 | 27 |
| macOS Product | < 15.8 | 15.8 |
| < 26.7 | 26.7 | |
| < 27 | 27 | |
| visionOS Product | < 27 | 27 |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- Severity from
- CISA (its enrichment of the CVE record)
- Weakness
- CWE-287