CVE-2026-111641

EUVD-2026-103063
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 36.51%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
fastapiadminfastapiadmin
𝑥
≤ 3.0
CNA
Common Weakness Enumeration
References
https://github.com/fastapiadmin/FastapiAdmin/blob/v3.0/backend/app/api/v1/module_system/auth/controller.py#L173-L251
https://hackmd.io/@hieuPenguinnn/fastapiadmin-unauthenticated-autologin-and-hardcoded-jwt-secret
https://www.vulncheck.com/advisories/fastapiadmin-through-3.0-authentication-bypass-via-auto-login-endpoints