Better Auth Passkey Plugin allows passkey deletion through IDOR
Summary
Affected versions of the better-auth passkey plugin allow users with any valid session to delete arbitrary passkeys via their ID using POST /passkey/delete-passkey.
Details
ctx.body.id is implicitly trusted and used in passkey deletion queries.
better-auth applications configured with useNumberId may use auto incrementing IDs which makes it trivial to delete all passkeys via enumeration.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | @better-auth/passkey | < 1.4.0 | 1.4.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L- Weakness (CWE)
CWE-284, CWE-639- Platform
- npm
- Package
@better-auth/passkey- Disclosed
- 25.11.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-4vcf-q4xf-f48m - CC BY 4.0
Vulnerability history: @better-auth/passkey
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.