This article was originally published on avinashsangle.com.


CVE-2026-42271 is a command injection flaw in LiteLLM's MCP test endpoints. Chained with the Starlette host-header bypass (CVE-2026-48710), it becomes unauthenticated remote code execution. The fix: upgrade to LiteLLM 1.83.7 and Starlette 1.0.1, then rotate every credential the gateway...