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OpenAdvisories
High · 7.1 CVE-2025-71400 EUVD-2025-210591GHSA-44ff-3cmc-mgqfGHSA-4vcf-q4xf-f48m

better-auth passkey before 1.4.0 IDOR via delete-passkey

Published Aug 2, 2026 · Updated Oct 8, 2026 · Assigned by VulnCheck

Description

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.

Affected products

VendorProductAffectedFixed
better-auth passkey < 1.4.0 1.4.0

Affected packages

EcosystemPackageAffectedFixedRecord
npm @better-auth/passkey < 1.4.0 1.4.0 GHSA-4vcf-q4xf-f48m

References