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Claude Flaw Automatically Sends Malicious Prompts to AI Agents

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Claude Flaw Automatically Sends Malicious Prompts to AI Agents

A vulnerability in Claude, called PromptFiction, could enable end-to-end attacks on targeted systems when combined with another exploit, though the flaw has already been patched by Anthropic.

Why it matters: AI application developers using Claude need to verify they have deployed the patch to prevent malicious prompt injection attacks that could compromise their systems and user data.

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ai security

Claude Flaw Automatically Sends Malicious Prompts to AI Agents

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First seen by Cybersecurity Tracker

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Correction

Correction recorded as of .

ai security

Claude Flaw Automatically Sends Malicious Prompts to AI Agents

A vulnerability in Claude, when chained with another exploit called PromptFiction, could have enabled end-to-end attacks on targeted systems. Anthropic has patched the flaw.

Why it matters: Organizations using Claude in agentic workflows should verify they are running the patched version to prevent prompt injection attacks that could compromise downstream systems.

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