{"cve":"CVE-2026-58485","nvd":{"published":"2026-09-15T18:17:26.040","modified":"2026-09-30T17:51:56.193","status":"Deferred","description":"mcp-searxng is a Model Context Protocol server that gives AI assistants web search and URL-reading capabilities through SearXNG. Prior to 1.7.1, web_url_read receives its caller-controlled URL through src/index.ts and validates only the literal hostname in assertUrlAllowed() within src/url-reader.ts before undiciFetch() performs operating-system DNS resolution. A public-looking attacker-controlled hostname that resolves to a private, loopback, link-local, or cloud-metadata address therefore passes the lexical check and causes the MCP server to connect to the internal destination. In the default HTTP configuration, an unauthenticated network client can use this path to read internal services, expose credentials or service tokens, and enumerate reachable internal hosts; in STDIO deployments, prompt-influenced tool selection can provide the malicious URL. Direct private IP literals are blocked, and MCP_HTTP_ALLOW_PRIVATE_URLS remains an explicit opt-out. This issue is fixed in version 1.7.1.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N","score":7.1},"cwes":["CWE-918"],"references":["https://github.com/ihor-sokoliuk/mcp-searxng/commit/14575eaaa46a21391477d2b68673858ba6b52bd6","https://github.com/ihor-sokoliuk/mcp-searxng/pull/120","https://github.com/ihor-sokoliuk/mcp-searxng/releases/tag/v1.7.1","https://github.com/ihor-sokoliuk/mcp-searxng/security/advisories/GHSA-mrvx-jmjw-vggc"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:54:41.405518556+00:00"},"epss":{"cve":"CVE-2026-58485","score":0.00188,"percentile":0.08338,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-mrvx-jmjw-vggc","url":"https://osv.dev/vulnerability/GHSA-mrvx-jmjw-vggc","summary":" SearXNG MCP Server: DNS-resolved Private Hostname SSRF in `web_url_read`","modified":"2026-09-16T03:56:04.411946894Z","packages":[{"ecosystem":"npm","name":"mcp-searxng","purl":"pkg:npm/mcp-searxng","ranges":["<1.7.1"],"fixed":["1.7.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}