p PatchFirst

PatchFirst · Latest vulnerabilities

excel-mcp-server vulnerabilities

Vulnerabilities published for excel-mcp-server in the last 30 days: 0. Listed in the KEV catalogue: 0.

RSS ↗ JSON ↗
Filter vulnerabilities
Clear filters

Vulnerability: 1

  1. CVE-2026-40576

    Critical · CVSS 9.4EPSS 0.46%Fix available

    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in excel-mcp-server

    excel-mcp-server is a Model Context Protocol server for Excel file manipulation. A path traversal vulnerability exists in excel-mcp-server versions up to and including 0.1.7. When running in SSE or Streamable-HTTP transport mode (the documented way to use this server remotely), an unauthenticated attacker on the network can read, write, and overwrite arbitrary files on the host filesystem by supplying crafted filepath arguments to any of the 25 exposed MCP tool handlers. The server is intended to confine file operations to a directory set by the EXCEL_FILES_PATH environment variable. The function responsible for enforcing this boundary — get_

    excel-mcp-serverPython
    • Update to 0.1.8
    Published Updated
    Source advisory 1 ↗Source advisory 2 ↗

Check your server

Check your installed stack and versions against the current vulnerability feeds.

Check your server →