This issue was addressed with additional entitlement checks. This issue is fixed in iOS 26 and iPadOS 26, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. An app may be able to fingerprint the user.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Apple Osx Cloudkit | — | Upgrade macOS to the latest version | Jan 22, 2026 | Jan 22, 2026 |
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