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OpenAdvisories
Medium · 5.4 CVE-2026-107371 EUVD-2026-100483

Missing Verification of auth_time Claim in auth0.js

Published Oct 13, 2026 · Updated Oct 14, 2026 · Assigned by Okta

Description

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.

Affected products

VendorProductAffectedFixed
Auth0 auth0.js 9.12.0 – < 10.3.0 10.3.0

References