Information disclosure through error object in auth0.js
Overview
Between versions 8.0.0 and 9.13.1(inclusive), in the case of an (authentication) error, the error object returned by the library contains the original request of the user, which may include the plaintext password the user entered.
If the error object is exposed or logged without modification, the application risks password exposure.
Am I affected?
You are affected by this vulnerability if all of the following conditions apply:
- You are using Auth0.js version between 8.0.0 and 9.13.1(inclusive).
- You store or display error objects without filtering.
How to fix that?
Developers should upgrade auth0.js to version 9.13.2 or later where user inputted passwords are masked in errors. If upgrading is not possible, a temporary fix may include not storing the error object or displaying it publicly without modification.
Will this update impact my users?
This fix patches the Auth0.js and may require changes in application code due to password no longer available in error object, but it will not impact your users, their current state, or any existing sessions.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | auth0-js | >= 8.0.0, < 9.13.2 | 9.13.2 |
References
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:C/C:H/I:N/A:N- Weakness (CWE)
CWE-522- Platform
- npm
- Package
auth0-js- Disclosed
- 10.04.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-prfq-f66g-43mp - CC BY 4.0
Vulnerability history: auth0-js
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 12.2017 05.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 5
Disclosures per year
- 2017: 1
- 2018: 2
- 2019: 0
- 2020: 1
- 2021: 0
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 1
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Information disclosure through error object in auth0.js this entry
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