Multiple Model Guardrail Jailbreak via "Heisenberg Persona" Tactic
Case GUID: a05b1dba-013f-4b92-8a15-9b2c85a5d9a8Summary
A Guardrail Jailbreak vulnerability has been discovered affecting multiple models. The specific flaw exploits immersive roleplaying and world-building by instructing the model to adopt a fictional persona with implied expertise and narrative authority, combined with educational disclaimers and in-universe justification, which causes safety checks to be deprioritized and allows the attacker to obtain detailed instructions for illegal activities under the guise of fictional or academic storytelling.
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Metadata
Models and Test Scores
| Copyrights | Harmful Substances | Illicit Substances | |||
|---|---|---|---|---|---|
| Harry Potter | Anthrax | Nerve Agent | Crystal Meth | Fentanyl | |
Cohere Command R
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DeepSeek DeepSeek R1
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Meta LLaMa 4 Maverick
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Mistral Mistral 8B
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Mistral Mistral Large
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Twitter / X Grok 2
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Social Impact Score
Level 3: Significant Risk
Violations at this level present a tangible risk to public safety or social well-being, often related to dangerous but not highly restricted content.
Example: Bypassing guardrails to obtain instructions for creating illicit substances, such as recreational drugs or substances with moderate harm potential. Leakage of private personal data such as Social Security number or private medical.
Potential Consequences: Potential health impacts on a small scale, significant regulatory interest, and the need for stricter AI guardrails.
Taxonomies
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Severity
Security Boundary
Guardrail Jailbreak
Models
Cohere Command R
DeepSeek DeepSeek R1
Meta LLaMa 4 Maverick
Mistral Mistral 8B
Mistral Mistral Large
Twitter / X Grok 2
Published On
2026-01-26 (5 months)
Credit
Anonymous