CVE-2026-30623

9.8 criticalEPSS 5.0%

Critical (9.8). EPSS 5.0% chance of exploitation in the next 30 days.

LiteLLM 1.18.10 contains a remote code execution vulnerability in its MCP server creation functionality. The application allows users to add MCP servers via a JSON configuration specifying arbitrary command and args values. LiteLLM executes these values on the host without validation, enabling attackers to run arbitrary operating system commands. Successful exploitation may result in remote code execution with the privileges of the LiteLLM process.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 5.0% chance of exploitation in the next 30 days; higher than 92% of CVEs (scores of 2026-10-31)
CWE: CWE-77
Published: 2026-07-15
Modified: 2026-07-16
Record from: the NVD, synced 2026-10-19

References

https://docs.litellm.ai/blog/mcp-stdio-command-injection-april-2026
https://github.com/BerriAI/litellm
https://www.ox.security/blog/mcp-supply-chain-advisory-rce-vulnerabilities-across-the-ai-ecosystem/

Check your stack JSON