CVE-2026-107371 Missing Verification of auth_time Claim in auth0.js
Attackers can bypass session age limits in auth0.js by exploiting missing auth_time validation when maxAge is configured.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-107371?
CVE-2026-107371 is a medium-severity vulnerability in auth0.js, published on 13 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-613
Which versions are affected by CVE-2026-107371?
How do I fix CVE-2026-107371?
No fix has been published for CVE-2026-107371 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-107371 being exploited?
There is no known exploitation of CVE-2026-107371 in the wild and no public exploit code.