New Study Identifies 53 Slopsquatting Targets Across 5 Frontier LLMs

A new study analyzed five frontier large language models and found they frequently hallucinate non-existent software package names, with 53 of them still available for registration across PyPI and npm as of April 2026. This creates a risk for 'slopsquatting,' where attackers could register these commonly hallucinated names to distribute malware. Although no active exploitation has been observed, the convergence of hallucinated names across multiple models increases the potential impact of such an attack. The research highlights ongoing software supply chain risks associated with AI-generated code recommendations.

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