CVE-2026-111642 FastapiAdmin through 3.0 Hard-Coded JWT Secret Privilege Escalation
Hard-coded JWT secret allows attackers to forge superuser tokens and escalate privileges in FastapiAdmin.
- 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-2026-111642?
CVE-2026-111642 is a high-severity vulnerability in FastapiAdmin, published on 16 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
FastapiAdmin through 3.0 contains a hard-coded JWT signing secret in backend/app/config/setting.py that allows low-privileged users to forge tokens impersonating the superuser. Attackers can register via the unauthenticated /api/v1/system/user/register endpoint, log in, and forge an HS256 token keeping their session_id but naming the superuser in user_name to gain superuser privileges.
Weakness: CWE-321
Which versions are affected by CVE-2026-111642?
How do I fix CVE-2026-111642?
No fix has been published for CVE-2026-111642 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-111642 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111642 exists.
Sources
Also known as GHSA-p7cm-h8w6-p4cm.