LiteLLM Flaw CVE-2026-42271 Exploited in the Wild, Chains to Unauthenticated RCE

The U.S. Cybersecurity and Infrastructure Security Agency CISA on Monday added a high-severity flaw impacting BerriAI LiteLLM to its Known Exploited Vulnerabilities KEV catalog, citing evidence of active exploitation. The vulnerability, tracked as CVE-2026-42271 CVSS score: 8.7, is a command...

VulnCheck KEV: CVE-2026-42271

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 i...

CVE-2026-42208

LiteLLM is a proxy server AI Gateway to call LLM APIs in OpenAI or native format. From version 1.81.16 to before version 1.83.7, a database query used during proxy API key checks mixed the caller-supplied key value into the query text instead of passing it as a separate parameter. An...

CVE-2026-42203

LiteLLM is a proxy server AI Gateway to call LLM APIs in OpenAI or native format. From version 1.80.5 to before version 1.83.7, the POST /prompts/test endpoint accepted user-supplied prompt templates and rendered them without sandboxing. A crafted template could run arbitrary code inside the...

EUVD-2026-28503

LiteLLM is a proxy server AI Gateway to call LLM APIs in OpenAI or native format. From version 1.81.16 to before version 1.83.7, a database query used during proxy API key checks mixed the caller-supplied key value into the query text instead of passing it as a separate parameter. An...

CVE-2026-42208 LiteLLM: SQL injection in Proxy API key verification

LiteLLM is a proxy server AI Gateway to call LLM APIs in OpenAI or native format. From version 1.81.16 to before version 1.83.7, a database query used during proxy API key checks mixed the caller-supplied key value into the query text instead of passing it as a separate parameter. An...

CVE-2026-42208

LiteLLM proxy (AI Gateway) versions 1.81.16–1.83.6 suffer a SQL injection in the proxy API key verification path where the caller-supplied key is interpolated into a SQL query during error handling. An unauthenticated attacker can send a crafted Authorization header to LLM routes (e.g., POST /cha...

CVE-2026-42203

LiteLLM (proxy server) is affected from version 1.80.5 up to before 1.83.7 due to Server-Side Template Injection in the POST /prompts/test endpoint. The endpoint renders user-supplied prompt templates without sandboxing, enabling arbitrary code execution inside the LiteLLM Proxy process when auth...

CVE-2026-42203

LiteLLM is a proxy server AI Gateway to call LLM APIs in OpenAI or native format. From version 1.80.5 to before version 1.83.7, the POST /prompts/test endpoint accepted user-supplied prompt templates and rendered them without sandboxing. A crafted template could run arbitrary code inside the...

EUVD-2026-28502

LiteLLM is a proxy server AI Gateway to call LLM APIs in OpenAI or native format. From version 1.80.5 to before version 1.83.7, the POST /prompts/test endpoint accepted user-supplied prompt templates and rendered them without sandboxing. A crafted template could run arbitrary code inside the...

CVE-2026-42203 LiteLLM: Server-Side Template Injection in /prompts/test endpoint

LiteLLM is a proxy server AI Gateway to call LLM APIs in OpenAI or native format. From version 1.80.5 to before version 1.83.7, the POST /prompts/test endpoint accepted user-supplied prompt templates and rendered them without sandboxing. A crafted template could run arbitrary code inside the...

CVE-2026-42271

Summary: CVE-2026-42271 affects LiteLLM up to v1.83.7, where two MCP preview endpoints (POST /mcp-rest/test/connection and /tools/list) could spawn arbitrary commands via stdio transport when provided a full server config, restricted only by a valid API key. The subprocess ran with the proxy’s pr...

EUVD-2026-28507

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 i...

LiteLLM SQL注入漏洞

LiteLLM is an open-source application developed by Berri AI. It allows for the use of OpenAI format calls for all LLM APIs. In versions 1.81.16 to 1.83.7 of LiteLLM, there was a SQL injection vulnerability. This vulnerability stemmed from the use of database queries during the check of the proxy...

GHSA-V4P8-MG3P-G94G LiteLLM: Authenticated command execution via MCP stdio test endpoints

Impact 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...

LiteLLM: Authenticated command execution via MCP stdio test endpoints

Impact 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...

LiteLLM has SQL Injection in Proxy API key verification

Impact A database query used during proxy API key checks mixed the caller-supplied key value into the query text instead of passing it as a separate parameter. An unauthenticated attacker could send a specially crafted Authorization header to any LLM API route for example POST /chat/completions a...

GHSA-XQMJ-J6MV-4862 LiteLLM: Server-Side Template Injection in /prompts/test endpoint

Impact The POST /prompts/test endpoint accepted user-supplied prompt templates and rendered them without sandboxing. A crafted template could run arbitrary code inside the LiteLLM Proxy process. The endpoint only checks that the caller presents a valid proxy API key, so any authenticated user cou...

Command Injection

Overview litellm is a Library to easily interface with LLM API providers Affected versions of this package are vulnerable to Command Injection via preview MCP server endpoints POST /mcp-rest/test/connection and POST /mcp-rest/test/tools/list. An attacker can execute arbitrary commands by accessin...