When LLM Gateways Go Wrong: Findings from LiteLLM 

When LLM Gateways Go Wrong: Findings from LiteLLM 

SecurityVendor
Yanac

TL;DR; Our security assessment of LiteLLM (v1.77.7), a widely used open-source LLM gateway, uncovered multiple high-impact vulnerabilities (tracked as CVE-2026-35029, CVE-2026-59823) which have been resolved as of LiteLLM version 1.83.9. The most significant issues stemmed from a missing authorization check on the /config/update endpoint, which allowed any authenticated user (including low-privileged accounts) to modify the
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