Skip to content
Submit incident
AII-1001-61869
ReportedReported by fewer than three independent publishers, with no official finding.

Multiple Model Guardrail Jailbreak via Speculative Knowledge Preservation

A jailbreak vulnerability was discovered in multiple large language models that allows attackers to bypass safety guardrails by framing illicit requests as knowledge preservation tasks within hypothetical narratives.

19 February 2026 Β· Anthropic Β· Security and cyberattacks
19 February 2026
AII-1001-61869View source β†—
Quick facts
Category
Security and cyberattacks
Source
0din.ai
Date
19 February 2026
Drafted by
Raidu Incident Detection

What happened

A guardrail jailbreak vulnerability was discovered affecting Claude 3.5 Haiku, LLaMa 3.3, Mistral Large, GPT-4, and GPT-4o.

The jailbreak embeds illicit instructions within a futuristic, hypothetical narrative framing the request as a task to preserve lost knowledge for humanity's survival.

Reported impact

The vulnerability allows attackers to bypass inference restrictions around providing information hazards and violating laws by aligning malicious requests with the LLM's educational objectives.

Classification

Category
Security and cyberattacks
Harm status
Potential harm
Intent
Unknown
Timing
Pre-deployment
Harm types
Public interest
Harmed
General public
Failure modes
Jailbreak, Manipulation or dark pattern, Content moderation failure
Consequences
None recorded
AI systems
Claude 3.5 Haiku, LLaMa 3.3, Mistral Large, GPT-4, GPT-4o

Sources and evidence

This record was researched and written by the Index, based on the following original reporting.

0din.ai
0din.ai Disclosure