CVE-2026-42271
BerriAI LiteLLM contains a command injection vulnerability that could allow any authenticated user, including holders of low-privilege internal-user keys, to run arbitrary commands on the host.
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LiteLLM presenta una vulnerabilidad de inyección de comandos que permite a cualquier usuario autenticado, incluso con privilegios bajos, ejecutar comandos arbitrarios en el servidor host. Este fallo está siendo explotado activamente y afecta a los endpoints de prueba de conexiones MCP que procesan configuraciones de subprocesos maliciosas. Es fundamental actualizar a la versión 1.83.7 o superior para proteger la infraestructura de gateways de IA.
Relevant roles
Severity
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCWE-77CWE-78CISA KEV
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS
Affects
litellm:litellmTechnical description
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From version 1.74.2 to before version 1.83.7, two endpoints used to preview an MCP server before saving it — POST /mcp-rest/test/connection and POST /mcp-rest/test/tools/list — accepted a full server configuration in the request body, including the command, args, and env fields used by the stdio transport. When called with a stdio configuration, the endpoints attempted to connect, which spawned the supplied command as a subprocess on the proxy host with the privileges of the proxy process. The endpoints were gated only by a valid proxy API key, with no role check. Any authenticated user — including holders of low-privilege internal-user keys — could therefore run arbitrary commands on the host. This issue has been patched in version 1.83.7.