mcp-fetch-server@1.0.0 vulnerabilities

An MCP server offering simple HTTP fetch functionality

Direct Vulnerabilities

Known vulnerabilities in the mcp-fetch-server package. This does not include vulnerabilities belonging to this package’s dependencies.

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VulnerabilityVulnerable Version
  • C
Server-side Request Forgery (SSRF)

mcp-fetch-server is an An MCP server offering simple HTTP fetch functionality

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the fetch method, in the is_ip_private() function. An attacker can access internal network resources by sending crafted requests that bypass the intended private IP blocking, which does not perform its expected function.

How to fix Server-side Request Forgery (SSRF)?

A fix was pushed into the master branch but not yet published.

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