Server-side Request Forgery (SSRF)

Overview mcp-searxng is a MCP server for SearXNG integration Affected versions of this package are vulnerable to Server-side Request Forgery SSRF in the weburlread process due to insufficient validation in the assertUrlAllowed function. An attacker can access internal network resources and...

GHSA-MRVX-JMJW-VGGC SearXNG MCP Server: DNS-resolved Private Hostname SSRF in `web_url_read`

DNS-resolved Private Hostname SSRF in weburlread Summary The weburlread MCP tool in mcp-searxng is vulnerable to Server-Side Request Forgery SSRF via DNS rebinding bypass. The assertUrlAllowed function at src/url-reader.ts:85-93 validates only the syntactic hostname string against a private...

GHSA-XCQX-9JF5-W339 SearXNG MCP Server: Unbounded Response Body Read Bypasses URL Size Limit in `web_url_read`

Unbounded Response Body Read Bypasses URL Size Limit in weburlread Summary The weburlread MCP tool in mcp-searxng enforces its 5 MiB response-size limit exclusively by inspecting the Content-Length header of a preliminary HEAD request. When a server omits Content-Length — a standard HTTP practice...

Allocation of Resources Without Limits or Throttling

Overview mcp-searxng is a MCP server for SearXNG integration Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the weburlread process. An attacker can cause excessive memory and CPU consumption by supplying a specially crafted URL tha...