{"id":"CVE-2026-111641","published":"2026-10-16T18:17:44.730","lastModified":"2026-10-16T22:17:21.500","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.","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-306"],"vendors":[],"products":[],"references":[{"url":"https://github.com/fastapiadmin/FastapiAdmin/blob/v3.0/backend/app/api/v1/module_system/auth/controller.py#L173-L251","tags":[]},{"url":"https://hackmd.io/@hieuPenguinnn/fastapiadmin-unauthenticated-autologin-and-hardcoded-jwt-secret","tags":[]},{"url":"https://www.vulncheck.com/advisories/fastapiadmin-through-3.0-authentication-bypass-via-auto-login-endpoints","tags":[]}],"exploitRefs":[{"url":"https://github.com/fastapiadmin/FastapiAdmin/blob/v3.0/backend/app/api/v1/module_system/auth/controller.py#L173-L251","tags":[]}],"hasPoc":true,"ai":{"summary":"FastapiAdmin contains an authentication bypass vulnerability that allows unauthenticated attackers to gain full administrative access by exploiting unprotected auto-login endpoints. This flaw enables attackers to impersonate any user and obtain JWT sessions with superuser privileges.","exploitability":"The vulnerability is highly exploitable with no prerequisites, requiring only network access to the application's API endpoints to enumerate users and mint superuser tokens.","blast_radius":"If exploited, this vulnerability could allow attackers to fully compromise administrative access to FastapiAdmin installations, potentially leading to complete system takeover and data exfiltration across all user accounts.","remediation":"Upgrade to FastapiAdmin version 3.1 or later to address the authentication bypass vulnerability.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["auth-bypass","web","admin-panel","jwt"],"model":"garnet-coder","analyzedAt":"2026-10-17T08:46:21.588Z"}}