CVE-2026-111636 OpenBMB StaffDeck through 0.5.6 Authentication Bypass via Hard-Coded Session Secret
Attackers can forge admin session tokens using a hard-coded secret to gain full tenant administration and access stored credentials.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-111636?
CVE-2026-111636 is a critical vulnerability in OpenBMB StaffDeck, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-321
Which versions are affected by CVE-2026-111636?
How do I fix CVE-2026-111636?
No fix has been published for CVE-2026-111636 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-111636 being exploited?
There is no known exploitation of CVE-2026-111636 in the wild and no public exploit code.
Sources
Also known as GHSA-m82j-2j7c-gx6q.