Tuesday, September 9, 2025

Exploiting Trust in Model Names: A New Front in AI Supply-Chain Attacks

SEO-Optimized Summary of AI Supply Chain Security Issues

Our research reveals a critical vulnerability known as Model Namespace Reuse in the AI supply chain, affecting platforms like Microsoft’s Azure AI Foundry and Google’s Vertex AI, alongside numerous open-source projects. This flaw enables attackers to exploit deleted or transferred models by re-registering namespace identifiers, thereby facilitating Remote Code Execution (RCE) and malicious model deployments.

The Hugging Face platform, which facilitates AI model sharing, is particularly impacted as it permits the re-registration of abandoned namespaces. Once compromised, these models can be deployed into production pipelines, leading to serious security risks.

Mitigating this threat requires strategic actions, including version pinning, cloning trusted models, and scanning code for model references. Organizations can enhance their security posture with the Unit 42 Cloud Security Assessment for safe AI use.

For urgent inquiries or suspected compromises, contact the Unit 42 Incident Response team. Secure your AI development with proactive measures now.

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