CVE-2025-24180: A malicious website may be able to claim WebAuthn credentials from another website that shares a registrable suffix in Apple Safari
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.
AI Analysis
Technical Summary
This vulnerability (CVE-2025-24180) affects Apple Safari and related operating systems, allowing a malicious website to potentially claim WebAuthn credentials from another website that shares a registrable suffix. The root cause was insufficient input validation in the handling of WebAuthn credentials. Apple fixed the issue by improving input validation in Safari 18.4 and associated OS releases.
Potential Impact
Successful exploitation could lead to unauthorized access to WebAuthn credentials, compromising user authentication security for affected websites sharing the same registrable suffix. This impacts confidentiality and integrity of authentication data but does not affect availability.
Mitigation Recommendations
A fix is available and has been released by Apple in Safari 18.4, iOS 18.4, iPadOS 18.4, macOS Sequoia 15.4, visionOS 2.4, and watchOS 11.4. Users and administrators should update to these versions to remediate the vulnerability.
CVE-2025-24180: A malicious website may be able to claim WebAuthn credentials from another website that shares a registrable suffix in Apple Safari
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.
CVSS v3.1
Score 8.1high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2025-24180) affects Apple Safari and related operating systems, allowing a malicious website to potentially claim WebAuthn credentials from another website that shares a registrable suffix. The root cause was insufficient input validation in the handling of WebAuthn credentials. Apple fixed the issue by improving input validation in Safari 18.4 and associated OS releases.
Potential Impact
Successful exploitation could lead to unauthorized access to WebAuthn credentials, compromising user authentication security for affected websites sharing the same registrable suffix. This impacts confidentiality and integrity of authentication data but does not affect availability.
Mitigation Recommendations
A fix is available and has been released by Apple in Safari 18.4, iOS 18.4, iPadOS 18.4, macOS Sequoia 15.4, visionOS 2.4, and watchOS 11.4. Users and administrators should update to these versions to remediate the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2025-01-17T00:00:44.993Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69091538c28fd46ded7baa29
Added to database: 11/03/2025, 20:48:56 UTC
Last enriched: 07/09/2026, 08:41:01 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 99
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