{"id":"CVE-2026-54688","title":"mcp-searxng is a Model Context Protocol server that gives AI assistants web search and URL-reading capabilities through SearXNG","summary":"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 assertUrlAllow…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","cwe":["CWE-918"],"vendor":"ihor-sokoliuk","product":"mcp-searxng","affected":["mcp-searxng < 1.2.0"],"patched":["mcp-searxng 1.2.1"],"published":"2026-09-15","updated":"2026-09-15","sourceUpdated":"2026-09-15T19:17:20.583","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54688","references":[{"url":"https://github.com/ihor-sokoliuk/mcp-searxng/commit/48e5ecdcb4166a60b94c252dbe74b0a318110ac4","label":"security-advisories@github.com"},{"url":"https://github.com/ihor-sokoliuk/mcp-searxng/issues/87#issuecomment-4645453694","label":"security-advisories@github.com"},{"url":"https://github.com/ihor-sokoliuk/mcp-searxng/releases/tag/v1.2.0","label":"security-advisories@github.com"},{"url":"https://github.com/ihor-sokoliuk/mcp-searxng/security/advisories/GHSA-q87f-qc2r-2gw4","label":"security-advisories@github.com"},{"url":"https://github.com/ihor-sokoliuk/mcp-searxng/security/advisories/GHSA-q87f-qc2r-2gw4","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://github.com/ihor-sokoliuk/mcp-searxng/releases/tag/v1.2.1"},{"url":"https://github.com/advisories/GHSA-q87f-qc2r-2gw4"}],"tags":["nvd","cve.org","exploit-available","ghsa","npm"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-15T19:01:15.355649Z"},"aliases":["GHSA-q87f-qc2r-2gw4"],"ecosystem":"npm","ingestedAt":"2026-08-19T19:44:02.738Z","epss":0.00358,"epssPercentile":0.29486,"slug":"CVE-2026-54688","body":"## Overview\n\nmcp-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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-54688)\n\nAffected packages:\n\n- `mcp-searxng < 1.2.1`\n\nPatched in:\n\n- `mcp-searxng 1.2.1`\n\nSource: https://github.com/advisories/GHSA-q87f-qc2r-2gw4","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":35.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":204489,"id":"CVE-2026-54688","ts":1789501416492,"field":"exploit_available","old":"false","new":"true"}]}