What is CVE-2026-107371?

CVE-2026-107371 is a medium-severity vulnerability in Auth0 Auth0.js, classified under Insufficient Session Expiration. CVSS score: 5.4/10. Published 2026-10-13.

How severe is CVE-2026-107371?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in Auth0 Auth0.js

CVE-2026-107371

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.

Published 2026-10-13 · last modified 2026-10-14.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Auth0 Auth0.js

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

Frequently asked questions

What is CVE-2026-107371?: CVE-2026-107371 is a medium-severity vulnerability in Auth0 Auth0.js, classified under Insufficient Session Expiration. CVSS score: 5.4/10. Published 2026-10-13.
How severe is CVE-2026-107371?: Medium severity. CVSS v3 base score is 5.4 out of 10.