CVE-2025-71400
better-auth passkey before 1.4.0 IDOR via delete-passkey
- State
- Published
- Severity
- 7.1 High
- Published
- Aug 2, 2026
- Updated
- Oct 8, 2026
- Reserved
- Jul 18, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.1 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L | VulnCheck |
Weaknesses
- CWE-639 Authorization Bypass Through User-Controlled Key
Affected Products
| Product | Versions |
|---|---|
passkeybetter-auth |
|
References
- GitHub Security Advisory (GHSA-4vcf-q4xf-f48m)vendor-advisory
- VulnCheck Advisory: better-auth passkey before 1.4.0 IDOR via delete-passkeythird-party-advisory
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