CVE-2026-111636: Flaw in OpenBMB StaffDeck Scores 9.2 on CVSS
A newly published critical vulnerability in OpenBMB StaffDeck carries a CVSS score of 9.2. Here is what is affected and how to respond.
Key points
- CVE-2026-111636 affects OpenBMB StaffDeck.
- CVSS 9.2 (Critical).
- No exploitation confirmed yet.
OpenBMB StaffDeck is affected by CVE-2026-111636, a security flaw that the National Vulnerability Database rates 9.2 out of 10.
At a glance
- CVE
- CVE-2026-111636
- Product
- OpenBMB StaffDeck
- CVSS
- 9.2 Critical
- Weakness
- CWE-321
- Exploited
- No known exploitation
What is the vulnerability?
The NVD entry states: 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.
Affected versions
| Vendor | Product | Versions |
|---|---|---|
| Openbmb | StaffDeck | up to 0.5.6 |
Is it being exploited?
There is no public confirmation of exploitation at the time of publication. It does not appear in CISA's Known Exploited Vulnerabilities catalog. We will update this report if that changes.
What should you do?
- Identify whether the affected product and versions run in your environment.
- Apply the vendor update listed in the advisory as soon as it is available.
- Limit network exposure of the affected service until it is patched.
- Monitor the vendor advisory for updated guidance or exploitation reports.
What to do and how to stay safe: CVE-2026-111636
- Vulnerability severity scores ignore your specific architecture and context.
- Exploitability depends on network exposure and user behavior, not just code flaws.
- Prioritization requires continuous asset inventory and threat intelligence alignment.
Risk-based vulnerability management focuses your limited resources on the flaws that actually threaten your business. Start by mapping your critical assets and checking for active exploits to prioritize your backlog.
Step-by-step guide: Risk-Based Vulnerability Management: Prioritize Fixes by Actual Danger
General security guidance from the Threat Times newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is CVE-2026-111636?
CVE-2026-111636 is a CWE-321 vulnerability in OpenBMB StaffDeck.
How severe is CVE-2026-111636?
It has a CVSS score of 9.2 Critical.
Is CVE-2026-111636 being exploited?
There is no public confirmation of exploitation at the time of publication.
