{"schema":"threatline.record/2","record":{"id":"CVE-2026-104120","aliases":[],"summary":"modelcontextprotocol mcp-server-fetch/mcp-server-everything Fetch Tool server.py fetch_url server-side request forgery","details":"A security vulnerability has been detected in modelcontextprotocol mcp-server-fetch and mcp-server-everything up to 2026.6.4. Affected is the function fetch_url of the file mcp_server_fetch/server.py of the component Fetch Tool. The manipulation of the argument url/path leads to server-side request forgery. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The pull request to fix this issue awaits acceptance.","categories":["Unclassified"],"product":"mcp-server-fetch","vendor":"modelcontextprotocol","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104120","source_modified_at":"2026-10-06T02:27:50.199Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"mcp-server-fetch","vendor":"modelcontextprotocol","versions":[{"version":"2026.6.0","status":"affected"},{"version":"2026.6.1","status":"affected"},{"version":"2026.6.2","status":"affected"},{"version":"2026.6.3","status":"affected"},{"version":"2026.6.4","status":"affected"}],"defaultStatus":null},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-104120","source_modified_at":"2026-10-06T02:27:50.199Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"mcp-server-everything","vendor":"modelcontextprotocol","versions":[{"version":"2026.6.0","status":"affected"},{"version":"2026.6.1","status":"affected"},{"version":"2026.6.2","status":"affected"},{"version":"2026.6.3","status":"affected"},{"version":"2026.6.4","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":6.9,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00288,"percentile":0.20271,"score_date":"2026-10-23"},"published_at":"2026-10-02T02:15:18.514Z","modified_at":"2026-10-06T02:27:50.199Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-104120","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-06T02:27:50.199Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-104120","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://vuldb.com/vuln/412764","tags":["vdb-entry","technical-description"]},{"source":"CVE List","url":"https://vuldb.com/vuln/412764/cti","tags":["signature","permissions-required"]},{"source":"CVE List","url":"https://vuldb.com/cve/CVE-2026-104120","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://vuldb.com/submit/960099","tags":["third-party-advisory"]},{"source":"CVE List","url":"https://github.com/modelcontextprotocol/servers/issues/4492","tags":["exploit","issue-tracking"]},{"source":"CVE List","url":"https://github.com/modelcontextprotocol/servers/pull/4890","tags":["issue-tracking","patch"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-06T02:27:41.354000Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-06T02:27:50.199Z","content_hash":"8ed67898a22b27f44d4abcc5c9a8bd36da8296bd2a7f165b6f7a44ca9b985cb9"}}