CVE-2026-111636
High
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.
SeverityHigh
CVSS8.1
Exploit probability—
ProductStaffDeck
PublishedOct 16, 2026
First seenOct 16, 2026
Weakness typeCWE-321CWE-321
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OpenBMB StaffDeck | v ≤ 0.5.6 | — |
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