Command Injection Affecting litellm package, versions [,1.83.6)
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PYTHON-LITELLM-17988450
- published16 Jul 2026
- disclosed16 Jul 2026
- creditMoshe Siman Tov Bustan, Mustafa Naamnih, Nir Zadok
Introduced: 16 Jul 2026
NewCVE-2026-30623 (opens in a new tab)How to fix?
Upgrade litellm to version 1.83.6 or higher.
Overview
litellm is a Library to easily interface with LLM API providers
Affected versions of this package are vulnerable to Command Injection in the _create_mcp_client function, which passes a user-supplied command value into StdioServerParameters and executes it as a subprocess on the proxy host without validation. A user with a valid LiteLLM API key can execute arbitrary operating system commands as the process user by supplying a command in an MCP server creation or update request (NewMCPServerRequest, UpdateMCPServerRequest) or in the /mcp-rest/test/connection and /mcp-rest/test/tools/list preview endpoints.