Answer in brief
CVE-2026-58485 records a High severity (CVSS 7.1) vulnerability in mcp-searxng: DNS-resolved Private Hostname SSRF in `web_url_read`. The current sources do not mark it as known exploited. The current feed maps ihor-sokoliuk/mcp-searxng (generic), mcp-searxng (npm), mcp-searxng (npm). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps ihor-sokoliuk/mcp-searxng (generic), mcp-searxng (npm), mcp-searxng (npm). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| ihor-sokoliuk/mcp-searxnggeneric | < 1.7.1 | Not reported |
| mcp-searxngnpm | <1.7.1 | 1.7.1 |
| mcp-searxngnpm | >=0 <1.7.1 | 1.7.1 |
Published upstream
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 19, 2026
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.
Quoted source text, attributed separately from HOL analysis.