Disclosure summary
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.
Source-reported weakness categories
CWE-639
Source-specific records & product guidance
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NIST NVD · NVD-CVE-2025-71400
Open original source · Updated Oct 08, 2026
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Original records & references
Repositories cited by this CVE
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- better-auth/better-auth CVE record citation
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Discovery progress
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PUBLISHED 2026-08-02T13:16:52+00:00
MODIFIED 2026-10-08T16:16:53+00:00
INGESTED 2026-10-11T00:50:36+00:00