A Poisoned Xinference Package Targets AI Inference Servers
Part 1 covered CanisterWorm. Part 2 covered the malicious LiteLLM package. Part 3 covered the Telnyx WAV steganography attack. This post covers the latest wave: three malicious versions of xinference on PyPI, carrying the same credential-stealing playbook and a plot twist. On April 22, 2026, Mend.io’s threat detection identified malicious versions of xinference on PyPI: 2.6.0, 2.6.1, and 2.6.2.