CVE-2026-54688 mcp-searxng: SSRF in web_url_read: the internal-address guard is disabled by default (MCP_HTTP_HARDEN off)

mcp-searxng is a Model Context Protocol server that gives AI assistants web search and URL-reading capabilities through SearXNG. Prior to 1.2.0, weburlread passes a caller-supplied URL to the server-side fetch path while assertUrlAllowed in src/url-reader.ts runs only when MCPHTTPHARDEN is enable...