CVE-2025-71400 better-auth passkey before 1.4.0 IDOR via delete-passkey
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2025-71400?
CVE-2025-71400 is a high-severity vulnerability in better-auth passkey, published on 2 Aug 2026.
Official 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.
Weakness: CWE-639
Which versions are affected by CVE-2025-71400?
2 open source packages ship an affected version, including @better-auth/passkey.
| Package | Affected | Fixed in |
|---|---|---|
@better-auth/passkey npm | All versions | 1.4.0 |
@better-auth/passkey npm | All versions | 1.4.0 |
How do I fix CVE-2025-71400?
Upgrade @better-auth/passkey to 1.4.0 or later.
Is CVE-2025-71400 being exploited?
There is no known exploitation of CVE-2025-71400 in the wild and no public exploit code.
Sources
Also known as GHSA-44ff-3cmc-mgqf, GHSA-4vcf-q4xf-f48m.