5.3

CVE-2026-107370: auth0 auth0-lock

CVSS: 5.3v3.1MediumAwaiting analysis
Published 13-10-2026Last modified 14-10-2026
Open JSON

Vulnerability summary

CVE-2026-107370 is a medium (CVSS 5.3) vulnerability in auth0 auth0-lock. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 19.3% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.28%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 13-10-2026
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

14-10-202619-10-2026
EPSS score
0.28%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Auth01 product
  • auth0-lock≥ 10.9.0, < 13.2.1 | ≥ 14.0.0, < 15.0.2

1 vendor · 1 product

References

2 links