{"id":"CVE-2026-111642","summary":"FastapiAdmin through 3.0 Hard-Coded JWT Secret Privilege Escalation","details":"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.","modified":"2026-10-21T02:55:49.040603925Z","published":"2026-10-16T17:39:12.365Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-321"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111642.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111642.json"},{"type":"PACKAGE","url":"https://github.com/fastapiadmin/FastapiAdmin"},{"type":"ARTICLE","url":"https://github.com/fastapiadmin/FastapiAdmin/blob/v3.0/backend/app/config/setting.py#L67"},{"type":"ARTICLE","url":"https://github.com/fastapiadmin/FastapiAdmin/blob/v3.0/backend/app/core/dependencies.py#L72-L112"},{"type":"ADVISORY","url":"https://hackmd.io/@hieuPenguinnn/fastapiadmin-unauthenticated-autologin-and-hardcoded-jwt-secret"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111642"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/fastapiadmin-through-3.0-hard-coded-jwt-secret-privilege-escalation"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/fastapiadmin/fastapiadmin","events":[{"introduced":"0"},{"last_affected":"362f005924700157b390b1224142b3cfa276f426"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"0"},{"last_affected":"3.0"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"}]}}],"versions":["v3.0","V2.0","V1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111642.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}