Description
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.
References
- www.cve.org/CVERecord ↗
- nvd.nist.gov/vuln/detail/CVE-2026-111636 ↗
- github.com/OpenBMB/StaffDeck/blob/v0.5.6/backend/app/config.py ↗
- github.com/OpenBMB/StaffDeck/blob/v0.5.6/backend/app/security/auth.py ↗
- hackmd.io/@hieuPenguinnn/staffdeck-default-token-signing-secret-auth-bypass ↗
- www.vulncheck.com/advisories/openbmb-staffdeck-through-0.5.6-authentication-bypass-via-hard-coded-session-secret ↗
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This product uses the NVD API but is not endorsed or certified by the NVD. CVSS scores do not establish exploitation.