CVE-2026-107370

Improper Request Handling for Active Directory Logins in auth0-lock

Published Oct 13, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
When a username for an Active Directory connection is a domain without a local part, the auth0-lock library initiates the authentication transaction with a GET request instead of a POST request. As a result, user-submitted form data is appended to the URL as query string parameters.

Remediation

Vendor Solution

Upgrade auth0-lock to version 13.2.1, or version 15.0.2 or greater.

Tracking

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Advisories

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History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description When a username for an Active Directory connection is a domain without a local part, the auth0-lock library initiates the authentication transaction with a GET request instead of a POST request. As a result, user-submitted form data is appended to the URL as query string parameters.
Title Improper Request Handling for Active Directory Logins in auth0-lock
Weaknesses CWE-532
CWE-598
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N'}

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
Okta
Published
Updated
Oct 14, 2026, 6:41 PM
Reserved
Oct 7, 2026, 8:59 PM
Status
Awaiting Analysis
Published
Oct 13, 2026, 9:17 PM
Modified
Oct 15, 2026, 8:38 PM