yuna0x0/hackmd-mcp

v1.5.0 Security

This release includes 1 security fix for security teams reviewing exposed deployments.

Published 8mo MCP Developer Tools

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✓ No known CVEs patched

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This release patches 1 known CVE

Topics

ai api hackmd llm mcp mcp-server

Affected surfaces

auth breaking_upgrade

Summary

AI summary

Custom HackMD API URLs must be whitelisted via ALLOWED_HACKMD_API_URLS environment variable.

Full changelog

What's Changed

Add HackMD API URL allowlist to prevent SSRF attacks (CVE-2025-59155)
Upgrade package manager and update pnpm lockfile

⚠️ Breaking change

User who uses custom HackMD API URL with HackMD MCP server running in HTTP transport mode, should update their server environment variable with ALLOWED_HACKMD_API_URLS (comma-separated URL).

Otherwise, the default configuration now only allows the official HackMD API URL (https://api.hackmd.io/v1).

For example:

ALLOWED_HACKMD_API_URLS=https://api.hackmd.io/v1,https://your-hackmd-instance.com/api/v1

Full Changelog: https://github.com/yuna0x0/hackmd-mcp/compare/v1.4.2...v1.5.0

Breaking Changes

Default configuration now restricts HackMD API calls to https://api.hackmd.io/v1; custom URLs require ALLOWED_HACKMD_API_URLS env var (comma‑separated).

Security Fixes

CVE-2025-59155 — Added HackMD API URL allowlist to prevent SSRF attacks.

View diff on GitHub

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About yuna0x0/hackmd-mcp

Allows AI models to interact with HackMD

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