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The issue was addressed with improved input validation. This issue is fixed in Safari 18.4, visionOS 2.4, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4. A malicious website may be able to claim WebAuthn credentials from another website that shares a registrable suffix.
Reserved 2025-01-17 | Published 2025-03-31 | Updated 2025-04-01 | Assigner appleA malicious website may be able to claim WebAuthn credentials from another website that shares a registrable suffix
support.apple.com/en-us/122371
support.apple.com/en-us/122373
support.apple.com/en-us/122378
support.apple.com/en-us/122379
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