litellm Supply Chain Attack (March 2026): How TeamPCP Backdoored a PyPI Package Used by Millions
On March 24, 2026, threat actor TeamPCP published two backdoored versions of litellm to PyPI, affecting developers who installed v1.82.7 or v1.82.8 during a 3-hour window. This is a verified, technical breakdown of exactly how the attack happened, what the malware did, how to check if you're affected, and what it means for supply chain security going forward.
Mar 26, 2026