Authentication Bypass in otpauth
Versions of otpauth prior to 3.2.8 are vulnerable to Authentication Bypass. The package's totp.validate() function may return positive values for single digit tokens even if they are invalid. This may allow attackers to bypass the OTP authentication by providing single digit tokens.
Recommendation
Upgrade to version 3.2.8 or later.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | otpauth | < 3.2.8 | 3.2.8 |
References
- Weakness (CWE)
CWE-287- Platform
- npm
- Package
otpauth- Disclosed
- 03.09.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-rmmc-8cqj-hfp3 - CC BY 4.0
Vulnerability history: otpauth
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.
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