CVE-2026-19753: Model Context Protocol mcp-rdf-explorer MCP Server server.py explore_url server-side request forgery

A vulnerability was detected in Model Context Protocol mcp-rdf-explorer 1.0.0. Affected is the function exploreurl of the file src/mcp-rdf-explorer/server.py of the component MCP Server. Performing a manipulation of the argument url results in server-side request forgery. The attack may be initiated remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.