Server-side Request Forgery (SSRF) Affecting auth-fetch-mcp package, versions <3.0.1


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

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  • Snyk IDSNYK-JS-AUTHFETCHMCP-17812800
  • published4 Jul 2026
  • disclosed19 May 2026
  • creditUnknown

Introduced: 19 May 2026

CVE NOT AVAILABLE CWE-918  (opens in a new tab)

How to fix?

Upgrade auth-fetch-mcp to version 3.0.1 or higher.

Overview

auth-fetch-mcp is a MCP server that lets AI read Notion, Google Docs, Jira & any login-protected page via a real browser

Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via unvalidated auth_fetch and download_media URLs. The download_media and auth_fetch MCP tools accept arbitrary URLs and reach them as the MCP server process, with download_media additionally persisting the fetched response body to a user-controlled output directory.

CVSS Base Scores

version 4.0
version 3.1