Multiple vulnerabilities in 1millionbot Millie chatbot
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.
Summary
Prompt injection vulnerability in 1millionbot Millie chatbot that occurs when a user manages to evade chat restrictions using Boolean prompt injection techniques (formulating a question in such a way that, upon receiving an affirmative response ('true'), the model executes the injected instruction), causing it to return prohibited information and information outside its intended context. Successful exploitation of this vulnerability could allow a malicious remote attacker to abuse the service for purposes other than those originally intended, or even execute out-of-context tasks using 1millionbot's resources and/or OpenAI's API key. This allows the attacker to evade the containment mechanisms implemented during LLM model training and obtain responses or chat behaviors that were originally restricted.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| 1millionbot | Millie chat | 3.6.0 | — | No fix listed | CNA |
- Millie chat Vendor1millionbot Affected 3.6.0 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:1millionbot:millie_chatbot:*:*:*:*:*:*:*:* | before 3.6.0 | Vulnerable | 1millionbot |
- cpe:2.3:a:1millionbot:millie_chatbot:*:*:*:*:*:*:*:* Versions before 3.6.0 Vulnerable ·1millionbot
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-4399
- 2026-10-03 Alias added: GHSA-7649-76jc-fc5r
References
More 1millionbot Millie Chatbot vulnerabilities
- TI-2026-03827 Multiple vulnerabilities in 1millionbot Millie chatbot CVSS 4.0HIGH 7.0
Sources
- CVE-2026-4399 · CVE Program
- CVE-2026-4399 · NVD
- FIRST EPSS
- GHSA-7649-76jc-fc5r · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences