{"id":"CVE-2026-54688","revision":"db8d0bd7614240db8f3b5becb41e5213","records":[{"revision":"db8d0bd7614240db8f3b5becb41e5213","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-54688","aliases":[],"title":"mcp-searxng: SSRF in web_url_read: the internal-address guard is disabled by default (MCP_HTTP_HARDEN off)","description":"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, web_url_read passes a caller-supplied URL to the server-side fetch path while assertUrlAllowed() in src/url-reader.ts runs only when MCP_HTTP_HARDEN is enabled, even though MCP_HTTP_HARDEN is disabled by default in src/http-security.ts. In the default configuration, an attacker who influences the URL selected by a user or AI agent can make the server fetch loopback, private-network, or cloud metadata endpoint resources and return their contents into the model context. file:// URLs remain rejected, and the separate DNS-resolution and redirect-validation bypasses are outside this record. This issue is fixed in version 1.2.0.","state":0,"publishedAt":"2026-09-15T17:46:23.073+00:00","modifiedAt":"2026-09-15T19:01:31.029+00:00","affected":[{"ecosystem":"Vendor product","name":"mcp-searxng","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"ihor-sokoliuk\",\n                    \"product\": \"mcp-searxng\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.2.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/ihor-sokoliuk/mcp-searxng/security/advisories/GHSA-q87f-qc2r-2gw4","https://github.com/ihor-sokoliuk/mcp-searxng/issues/87#issuecomment-4645453694","https://github.com/ihor-sokoliuk/mcp-searxng/commit/48e5ecdcb4166a60b94c252dbe74b0a318110ac4","https://github.com/ihor-sokoliuk/mcp-searxng/releases/tag/v1.2.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-54688","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-54688","identifiers":["CVE-2026-54688"]},"retained":false,"historicalAffected":[]}],"coverage":[]}