CVE-2026-111636 Details
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.
A vulnerability in OpenBMB StaffDeck versions through 0.5.6 allows unauthenticated attackers to bypass authentication by forging administrator session tokens. This is possible due to a hard-coded default app_secret, which attackers can exploit to sign HMAC-SHA256 tokens for the 'admin' user in the 'tenant_demo' environment. As a result, attackers gain full administrative rights within the tenant, including access to sensitive model and channel credentials.
StaffDeck should be updated to a version that addresses this vulnerability. Operators should also set a strong, unique 'APP_SECRET' value and remove or re-password the default 'admin' account.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 16, 2026CISA-ADP
Assessed Oct 16, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-321 | Use of Hard-coded Cryptographic Key | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| OpenBMB StaffDeck | <= 0.5.6 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 16, 2026 | CVE Modified | CISA-ADP |
| Oct 16, 2026 | New CVE Received | [email protected] |