CVE-2025-71400

better-auth passkey versions before 1.4.0 contain an insecure direct object reference vulnerability in the passkey deletion endpoint that allows authenticated users to delete arbitrary passkeys by ID. Attackers with valid sessions can submit crafted requests to the delete-passkey endpoint with enumerated passkey IDs to remove other users' passkeys.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/better-auth/better-auth/security/advisories/GHSA-4vcf-q4xf-f48m
https://www.vulncheck.com/advisories/better-auth-passkey-before-idor-via-delete-passkey

Configurations

No configuration.

History

02 Aug 2026, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-08-02 13:16

Updated : 2026-08-03 17:16

NVD link : CVE-2025-71400

Mitre link : CVE-2025-71400

CVE.ORG link : CVE-2025-71400

JSON object : View

Products Affected

No product.

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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