Description
The issue was addressed with improved input validation. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4, macOS Sequoia 15.4, visionOS 2.4, watchOS 11.4. A malicious website may be able to claim WebAuthn credentials from another website that shares a registrable suffix.
Metrics
CVSS 3.1 8.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Safari | < 18.4 |
| Apple | iOS and iPadOS | < 18.4 |
| Apple | macOS | < 15.4 |
| Apple | visionOS | < 2.4 |
| Apple | watchOS | < 11.4 |
References
- https://support.apple.com/en-us/122371Vendor Advisory
- https://support.apple.com/en-us/122373Vendor Advisory
- https://support.apple.com/en-us/122376
- https://support.apple.com/en-us/122378Vendor Advisory
- https://support.apple.com/en-us/122379Vendor Advisory
- http://seclists.org/fulldisclosure/2025/Apr/12
- http://seclists.org/fulldisclosure/2025/Apr/13
- http://seclists.org/fulldisclosure/2025/Apr/2
- http://seclists.org/fulldisclosure/2025/Apr/4
- http://seclists.org/fulldisclosure/2025/Apr/8
Timeline
- Published
- Mar 31, 2025
- Last modified
- Jun 17, 2026
- NVD status
- Modified