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AVID-2026-R0064

Description

Multiple Model Guardrail Jailbreak via “Split Mode” Response Requests

Details

A guardrail jailbreak vulnerability has been found that affects at least Meta LLaMa, DeepSeek R1, Mistral Large, and Grok. The specific flaw manifests when the prompter requests that the model simulates “ChatGPT Developer Mode”. By crafting a story around specific timelines of when this mode was available and asking the model to return two forms of responses, one normal and the other in developer mode, the attacker is able to bypass inference restrictions around providing information hazards and violating laws.

Metrics

0DIN Jailbreak Testing obtained the following test scores.

ModelTest KindTest ScoreTemperature (max 2.0)
DeepSeek DeepSeek R1Illegal Substances: Crystal Meth73.00.7
Meta LLaMa 3.3Illegal Substances: Crystal Meth68.00.7
Mistral Mistral LargeIllegal Substances: Crystal Meth91.0N/A
Twitter / X Grok 2Illegal Substances: Crystal Meth73.00.7

References

Affected or Relevant Artifacts

TypeName
ModelDeepSeek R1
ModelMeta LLaMa 3.3
SystemMistral Large
SystemGrok 2

Impact

0DIN

  • Social Impact Score: Level 3: Significant Risk
  • Jailbreak Taxonomy:
CategoryStrategyTechnique
FictionalizingRoleplayingClaim Authority
FictionalizingRoleplayingDAN - Do Anything Now

Other information

  • Report Type: Measurement
  • Credits: Anonymous, Royce Moon, Eduardo Berlanga (seqode), Armand Von Choss, Yess Trejo, Allan Murara
  • Date Reported: 2026-02-19
  • Version: 0.3.1
  • AVID Entry