CVE-2026-107371

Missing Verification of auth_time Claim in auth0.js

State: Published
Severity: 5.4 Medium
Published: Oct 13, 2026
Updated: Oct 14, 2026
Reserved: Oct 7, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N	Okta

Weaknesses

CWE-613 Insufficient Session Expiration

Affected Products

Product	Versions
auth0.jsAuth0	9.12.0 to before 10.3.0Affected

References

https://trust.okta.com/security-advisories/missing-verification-of-auth_time-claim-in-auth0-js-cve-2026-107371
https://github.com/auth0/auth0.js/security/advisories/GHSA-42v6-5rcc-mq4v

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