# Auth0 Lock vulnerabilities

Source: https://junglewise.ai/threats/technologies/lock  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 13 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/lock.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 4 vulnerabilities in Auth0 Lock: 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-107370, was published on 13 October 2026. 1 vulnerability in the last four weeks, up from none in the four before.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 1
- All time: 4 (0 critical, 0 exploited in the wild)

## About Auth0 Lock

Auth0 authentication library for adding secure user login and management to applications.

## Latest Auth0 Lock vulnerabilities

- [CVE-2026-107370: Auth0 lock improper request handling in Active Directory logins](https://junglewise.ai/threats/cve-2026-107370-when-a-username-for-an-active-directory-connection-is-a-domain) (medium, CVSS 5.3, published 13 Oct 2026)
- [CVE-2022-29172: Auth0 Lock cross-site scripting via additional signup fields](https://junglewise.ai/threats/cve-2022-29172-auth0-lock-cross-site-scripting-via-additional-signup-fields) (low, CVSS 3.1, published 24 May 2022)
- [CVE-2021-32641: Auth0 Lock reflected XSS in flashMessages and languageDictionary](https://junglewise.ai/threats/cve-2021-32641-auth0-lock-reflected-xss-in-flashmessages-and-languagedictionary) (low, CVSS 3.1, published 4 Jun 2021)
- [CVE-2019-20174: Auth0 Lock XSS in unsanitized placeholder property](https://junglewise.ai/threats/cve-2019-20174-auth0-lock-xss-in-unsanitized-placeholder-property) (low, CVSS 3.1, published 31 Jan 2020)

## Most severe Auth0 Lock vulnerabilities

- [CVE-2026-107370: Auth0 lock improper request handling in Active Directory logins](https://junglewise.ai/threats/cve-2026-107370-when-a-username-for-an-active-directory-connection-is-a-domain) (medium, CVSS 5.3, published 13 Oct 2026)
- [CVE-2021-32641: Auth0 Lock reflected XSS in flashMessages and languageDictionary](https://junglewise.ai/threats/cve-2021-32641-auth0-lock-reflected-xss-in-flashmessages-and-languagedictionary) (low, CVSS 3.1, published 4 Jun 2021)
- [CVE-2019-20174: Auth0 Lock XSS in unsanitized placeholder property](https://junglewise.ai/threats/cve-2019-20174-auth0-lock-xss-in-unsanitized-placeholder-property) (low, CVSS 3.1, published 31 Jan 2020)
- [CVE-2022-29172: Auth0 Lock cross-site scripting via additional signup fields](https://junglewise.ai/threats/cve-2022-29172-auth0-lock-cross-site-scripting-via-additional-signup-fields) (low, CVSS 3.1, published 24 May 2022)

## Vulnerabilities per week

1 vulnerability in the last four weeks, up from none in the four before.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 1 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Auth0 technologies

- [Auth0 Nextjs-Auth0](https://junglewise.ai/threats/technologies/nextjs-auth0): 4 vulnerabilities
- [Auth0 AD/LDAP Connector](https://junglewise.ai/threats/technologies/ad-ldap-connector): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Auth0 Lock vulnerabilities", https://junglewise.ai/threats/technologies/lock, 13 November 2026.