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Vulnerability record · CVE-2020-15125 · published 29 July 2020

CVE-2020-15125: Auth0.js error message information leak vulnerability

Auth0 · Auth0.Js

In auth0 (npm package) versions before 2.27.1, a DenyList of specific keys that should be sanitized from the request object contained in the error object is used. The key for Authorization header is not sanitized and in certain cases the Authorization header value can be logged exposing a bearer token. You are affected by this vulnerability if you are using the auth0 npm package, and you are using a Machine to Machine application authorized to use Auth0's management API

7.7 CVSS 3.1 High EPSS 1.5% · top 26.1% CWE-209 · Error message information leak
7.7CVSS 3.1 base score, v2 4.0
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

Description

In auth0 (npm package) versions before 2.27.1, a DenyList of specific keys that should be sanitized from the request object contained in the error object is used. The key for Authorization header is not sanitized and in certain cases the Authorization header value can be logged exposing a bearer token. You are affected by this vulnerability if you are using the auth0 npm package, and you are using a Machine to Machine application authorized to use Auth0's management API

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/auth0/node-auth0/pull/507 PatchThird Party Advisory
https://github.com/auth0/node-auth0/pull/507/commits/62ca61b3348ec8e74d7d00358661af1a8bc98a3c PatchThird Party Advisory
https://github.com/auth0/node-auth0/security/advisories/GHSA-5jpf-pj32-xx53 Third Party Advisory
https://github.com/auth0/node-auth0/tree/v2.27.1 Release NotesThird Party Advisory
https://github.com/auth0/node-auth0/pull/507 PatchThird Party Advisory
https://github.com/auth0/node-auth0/pull/507/commits/62ca61b3348ec8e74d7d00358661af1a8bc98a3c PatchThird Party Advisory
https://github.com/auth0/node-auth0/security/advisories/GHSA-5jpf-pj32-xx53 Third Party Advisory
https://github.com/auth0/node-auth0/tree/v2.27.1 Release NotesThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-15125), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.