Server-side Request Forgery (SSRF) Affecting mcp-markdownify-server package, versions *
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Server-side Request Forgery (SSRF) vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-JS-MCPMARKDOWNIFYSERVER-14401150
- published12 Dec 2025
- disclosed10 Dec 2025
- creditUnknown
Introduced: 10 Dec 2025
CVE-2025-65512 (opens in a new tab)How to fix?
There is no fixed version for mcp-markdownify-server.
Overview
mcp-markdownify-server is a Model Context Protocol (MCP) server that converts various file types and web content to Markdown format. It provides a set of tools to transform PDFs, images, audio files, web pages, and more into easily readable and shareable Markdown text.
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) due to the improper validation in is_ip_private() function and fetch() function automatically following HTTP redirects without re-validating the redirected destination URLs. An attacker can access internal network services by exploiting hostname-based bypass and HTTP redirect chains.
Note:
This is a bypass for the SSRF described by CVE-2025-5276.