{"id":"CVE-2026-104120","title":"A security vulnerability has been detected in modelcontextprotocol mcp-server-fetch and mcp-server-everything up to 2026.6.4","summary":"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 mani…","severity":"high","cvss":7.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","cwe":["CWE-918"],"vendor":"modelcontextprotocol","product":"mcp-server-fetch","affected":["mcp-server-fetch 2026.6.0","mcp-server-fetch 2026.6.1","mcp-server-fetch 2026.6.2","mcp-server-fetch 2026.6.3","mcp-server-fetch 2026.6.4","mcp-server-everything 2026.6.0","mcp-server-everything 2026.6.1","mcp-server-everything 2026.6.2","mcp-server-everything 2026.6.3","mcp-server-everything 2026.6.4"],"published":"2026-10-02","updated":"2026-10-06","sourceUpdated":"2026-10-06T03:16:59.463","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-104120","references":[{"url":"https://github.com/modelcontextprotocol/servers/issues/4492","label":"cna@vuldb.com"},{"url":"https://github.com/modelcontextprotocol/servers/pull/4890","label":"cna@vuldb.com"},{"url":"https://vuldb.com/cve/CVE-2026-104120","label":"cna@vuldb.com"},{"url":"https://vuldb.com/submit/960099","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/412764","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/412764/cti","label":"cna@vuldb.com"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-06T02:27:41.354000Z"},"epss":0.00288,"epssPercentile":0.21235,"ingestedAt":"2026-10-02T03:07:53.991Z","slug":"CVE-2026-104120","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":52,"depthScoreParts":{"impact":40.2,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":216168,"id":"CVE-2026-104120","ts":1791265676283,"field":"exploit_available","old":"false","new":"true"}]}