{"id":"CVE-2026-111636","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-111636","summary":"OpenBMB StaffDeck through 0.5.6 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge administrator session tokens using the hard-coded default…","details":"OpenBMB StaffDeck through 0.5.6 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge administrator session tokens using the hard-coded default app_secret. Attackers can sign an HMAC-SHA256 token for the seeded 'admin' user in 'tenant_demo' to gain full tenant administration, including stored model and channel credentials.","published":"2026-10-16T18:17:44.010","modified":"2026-10-16T18:17:44.010","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/OpenBMB/StaffDeck/blob/v0.5.6/backend/app/config.py#L10"},{"type":"WEB","url":"https://github.com/OpenBMB/StaffDeck/blob/v0.5.6/backend/app/security/auth.py#L96-L98"},{"type":"WEB","url":"https://hackmd.io/@hieuPenguinnn/staffdeck-default-token-signing-secret-auth-bypass"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/openbmb-staffdeck-through-0.5.6-authentication-bypass-via-hard-coded-session-secret"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-10-16T18:17:44.010"}}