Vulnerability · Published Oct 13, 2026 · Assigned by Okta
CVE-2026-107370Improper Request Handling for Active Directory Logins in auth0-lock
Medium 5.3
In plain English
A medium-severity sensitive data in logs in auth0-lock from Auth0. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 79.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Auth0 | auth0-lock | 10.9.0 – before 13.2.114.0.0 – before 15.0.2 |
Weakness: CWE-598, CWE-532 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N