Authentication Bypass in otpauth

Description

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

Update the otpauth package to the latest compatible version. Followings are version details:

• Affected version(s): < 3.2.8
• Patched version(s): 3.2.8

References

• GHSA-rmmc-8cqj-hfp3
• www.npmjs.com
• CWE-287
• OWASP 2021-A7

Related Issues

• Authentication Bypass in @strapi/plugin-users-permissions - Vulnerability
• cap-go/capacitor-native-biometric Authentication Bypass - Vulnerability
• Axios: Authentication Bypass via Prototype Pollution Gadget in `validateStatus` Merge Strategy - CVE-2026-42041
• validator.js has a URL validation bypass vulnerability in its isURL function - CVE-2025-56200

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Tags:

npm

otpauth