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TI-2026-03826 Aliases CVE-2026-4399GHSA-7649-76jc-fc5r

Multiple vulnerabilities in 1millionbot Millie chatbot

Priority MEDIUM 43CWE-1427Published · Updated

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

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00269 19th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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

VendorProductAffected versionsFixed inStatusSource
1millionbotMillie chat3.6.0—No fix listedCNA
  • Millie chat Vendor1millionbot Affected 3.6.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:1millionbot:millie_chatbot:*:*:*:*:*:*:*:*before 3.6.0Vulnerable1millionbot
  • cpe:2.3:a:1millionbot:millie_chatbot:*:*:*:*:*:*:*:* Versions before 3.6.0 Vulnerable ·1millionbot

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-4399
  2. 2026-10-03 Alias added: GHSA-7649-76jc-fc5r

References

  • TI-2026-03827 Multiple vulnerabilities in 1millionbot Millie chatbot CVSS 4.0HIGH 7.0

Sources