CVE-2026-111641 FastapiAdmin through 3.0 Authentication Bypass via Auto-Login Endpoints
Unauthenticated attackers can bypass authentication via auto-login endpoints to gain full administrative control over the FastapiAdmin application.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-111641?
CVE-2026-111641 is a critical authentication bypass vulnerability in FastapiAdmin, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
FastapiAdmin through 3.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain sessions for any user by abusing unprotected auto-login endpoints. Attackers can list users via /api/v1/auth/auto-login/users, mint a superuser auto-login token, and exchange it for a JWT session to gain full administrative control.
Weakness: CWE-306
Which versions are affected by CVE-2026-111641?
How do I fix CVE-2026-111641?
No fix has been published for CVE-2026-111641 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-111641 being exploited?
There is no known exploitation of CVE-2026-111641 in the wild and no public exploit code.
Sources
Also known as GHSA-xj6f-6mc4-xhqp.