---
id: CVE-2026-107371
title: >-
  When the authorize() method is called with a maxAge parameter, the auth0.js
  library does not validate the auth_time claim in the resulting ID token
  against the requested maxAge value
summary: >-
  When the authorize() method is called with a maxAge parameter, the auth0.js
  library does not validate the auth_time claim in the resulting ID token
  against the requested maxAge value. As a result, an application may process an
  ID token t…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N'
cwe:
  - CWE-613
vendor: Auth0
product: auth0.js
affected:
  - auth0.js >= 9.12.0 < 10.3.0
published: '2026-10-13'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T20:38:04.303'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-107371'
references:
  - url: 'https://github.com/auth0/auth0.js/security/advisories/GHSA-42v6-5rcc-mq4v'
    label: psirt@okta.com
  - url: >-
      https://trust.okta.com/security-advisories/missing-verification-of-auth_time-claim-in-auth0-js-cve-2026-107371
    label: psirt@okta.com
tags:
  - nvd
  - cve.org
epss: 0.00209
epssPercentile: 0.10897
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-14T18:40:16.045683Z'
ingestedAt: '2026-10-13T21:58:14.178Z'
---

## Overview

When the authorize() method is called with a maxAge parameter, the auth0.js library does not validate the auth_time claim in the resulting ID token against the requested maxAge value. As a result, an application may process an ID token that represents an authentication event older than the requested maximum age.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.