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LiteLLM Publishes April 2026 Security Hardening After Trend Micro Exposes AI Gateway Supply Chain Compromise
LiteLLM, the widely-used AI gateway/proxy, published a comprehensive security hardening update for April 2026 following Trend Micro's investigation that revealed it had been compromised as a supply chain attack vector — the AI gateway was functioning as a backdoor. The hardening update addresses vulnerability disclosures and ongoing security improvements. For builders routing multi-model agent traffic through LiteLLM (common in production agent deployments), this is a direct supply chain risk requiring immediate audit and upgrade.
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