{"kind": "product", "path": "vulns/npm/mcp-searxng", "name": "mcp-searxng", "product": "mcp-searxng", "ecosystem": "npm", "items": [{"id": "CVE-2026-58483", "noindex": false, "published": "2026-09-15T17:48:16.692Z", "modified": "2026-09-15T18:25:34.075Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.0067, "kev": false, "exploits": [], "stacks": [{"name": "node", "path": "vulns/stack/node", "slug": "node"}], "path": "vulns/cve-2026-58483", "title": "mcp-searxng: Unbounded Response Body Read Bypasses URL Size Limit in `web_url_read`", "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 in src/index.ts passes a caller-supplied URL to readUrlContent() in src/url-reader.ts, where checkContentLength() treats a missing Content-Length header as an inconclusive preflight and the normal and error paths then consume the complete body with response.text(). A server that omits Content-Length can therefore bypass URL_READ_MAX_CONTENT_LENGTH_BYTES and force unbounded memory use. The resulting string is also processed by NodeHtmlMarkdown.translate(), increasing CPU consumption and a", "references": ["https://github.com/ihor-sokoliuk/mcp-searxng/security/advisories/GHSA-xcqx-9jf5-w339", "https://github.com/ihor-sokoliuk/mcp-searxng/pull/121", "https://github.com/ihor-sokoliuk/mcp-searxng/commit/f5a947ed1650daed10fbdcd53c0db5a86489ffe4"], "fixes": ["1.7.1"], "products": [{"name": "mcp-searxng", "path": "vulns/npm/mcp-searxng", "ecosystem": "npm"}]}, {"id": "CVE-2026-58485", "noindex": false, "published": "2026-09-15T17:47:20.398Z", "modified": "2026-09-15T18:31:03.944Z", "cvss": 7.1, "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N", "severity": "high", "epss": 0.00188, "kev": false, "exploits": [], "stacks": [{"name": "node", "path": "vulns/stack/node", "slug": "node"}], "path": "vulns/cve-2026-58485", "title": "mcp-searxng: DNS-resolved Private Hostname SSRF in `web_url_read`", "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 c", "references": ["https://github.com/ihor-sokoliuk/mcp-searxng/security/advisories/GHSA-mrvx-jmjw-vggc", "https://github.com/ihor-sokoliuk/mcp-searxng/pull/120", "https://github.com/ihor-sokoliuk/mcp-searxng/commit/14575eaaa46a21391477d2b68673858ba6b52bd6"], "fixes": ["1.7.1"], "products": [{"name": "mcp-searxng", "path": "vulns/npm/mcp-searxng", "ecosystem": "npm"}]}, {"id": "CVE-2026-54688", "noindex": false, "published": "2026-09-15T17:46:23.073Z", "modified": "2026-09-15T19:01:31.029Z", "cvss": 6.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "severity": "medium", "epss": 0.00499, "kev": false, "exploits": [], "stacks": [{"name": "node", "path": "vulns/stack/node", "slug": "node"}], "path": "vulns/cve-2026-54688", "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, an", "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"], "fixes": ["1.2.1"], "products": [{"name": "mcp-searxng", "path": "vulns/npm/mcp-searxng", "ecosystem": "npm"}]}, {"id": "CVE-2026-54689", "noindex": false, "published": "2026-09-15T17:45:19.132Z", "modified": "2026-09-17T16:39:46.212Z", "cvss": 6.3, "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N", "severity": "medium", "epss": 0.0019, "kev": false, "exploits": [], "stacks": [{"name": "node", "path": "vulns/stack/node", "slug": "node"}], "path": "vulns/cve-2026-54689", "title": "mcp-searxng hardened-mode SSRF bypasses permit internal URL access", "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, the web_url_read URL policy in src/url-reader.ts can be bypassed while MCP_HTTP_HARDEN is enabled and MCP_HTTP_ALLOW_PRIVATE_URLS is not enabled because redirect targets are not revalidated, 0.0.0.0 is not classified as an internal address, and IPv4-mapped IPv6 literals canonicalized to hexadecimal form are not recognized. These inputs allow an attacker-influenced tool call to make the MCP server fetch loopback or internal HTTP resources and return content from local services, private APIs, service-m", "references": ["https://github.com/ihor-sokoliuk/mcp-searxng/security/advisories/GHSA-wppf-h75h-6pm6", "https://github.com/ihor-sokoliuk/mcp-searxng/pull/79", "https://github.com/ihor-sokoliuk/mcp-searxng/commit/48e5ecdcb4166a60b94c252dbe74b0a318110ac4"], "fixes": ["1.2.1"], "products": [{"name": "mcp-searxng", "path": "vulns/npm/mcp-searxng", "ecosystem": "npm"}]}, {"id": "GHSA-hjwh-xvfw-qrwj", "noindex": false, "published": "2026-08-19T19:32:46Z", "modified": "2026-08-19T19:45:08.067293182Z", "cvss": 5.5, "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "severity": "medium", "epss": null, "kev": false, "exploits": [], "stacks": [{"name": "node", "path": "vulns/stack/node", "slug": "node"}], "path": "vulns/ghsa-hjwh-xvfw-qrwj", "title": "SearXNG Basic Authentication Credentials Exposed Through MCP Logs and JSON-RPC Error Responses", "description": "### Summary\n\nmcp-searxng version 1.11.0 exposes SearXNG Basic Authentication credentials embedded in the `SEARXNG_URL` environment variable.\n\nWhen the server starts in STDIO mode and an MCP client connects, the complete `SEARXNG_URL`, including its username and password, is sent to the client through an MCP `notifications/message` logging notification.\n\nAdditionally, when URL validation fails, the complete credential-bearing URL is included in the configuration error. This error is logged through MCP and returned to the client as a JSON-RPC error response.\n\nFor example, a value such as:\n\n```text\nhttp://username:password@searxng.example.com\n``", "references": ["https://github.com/ihor-sokoliuk/mcp-searxng/security/advisories/GHSA-hjwh-xvfw-qrwj", "https://github.com/ihor-sokoliuk/mcp-searxng", "https://github.com/ihor-sokoliuk/mcp-searxng/releases/tag/v1.12.0"], "fixes": ["1.12.0"], "products": [{"name": "mcp-searxng", "path": "vulns/npm/mcp-searxng", "ecosystem": "npm"}]}], "total": 5, "unknown_count": 0, "release_unconfirmed": false, "page": 1, "pages": 1, "filtered": false, "noindex": false, "filters": {}, "page_size": 20, "products": [{"name": "mcp-searxng", "path": "vulns/npm/mcp-searxng", "ecosystem": "npm"}], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}, {"name": "web", "path": "vulns/stack/web", "slug": "web"}, {"name": "php", "path": "vulns/stack/php", "slug": "php"}, {"name": "python", "path": "vulns/stack/python", "slug": "python"}, {"name": "node", "path": "vulns/stack/node", "slug": "node"}, {"name": "database", "path": "vulns/stack/database", "slug": "database"}, {"name": "containers", "path": "vulns/stack/containers", "slug": "containers"}, {"name": "network", "path": "vulns/stack/network", "slug": "network"}, {"name": "applications", "path": "vulns/stack/applications", "slug": "applications"}], "versions": [], "stats": {"recent": 0, "kev": 0}, "lastmod": "2026-09-17T16:39:46.212Z", "early_advisories": [], "license": "You may freely use the PatchFirst selection and our additions (priorities, early warnings, texts, summaries and aggregates) for your own purposes, including internal business use. 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Unless required by applicable law or agreed to in writing, you provide such materials on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. CVE Usage : MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. 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