{"id":"CVE-2026-104120","published":"2026-10-02T03:16:38.840","lastModified":"2026-10-06T03:16:59.463","description":"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.","cvssScore":7.3,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","cwes":["CWE-918"],"vendors":[],"products":[],"references":[{"url":"https://github.com/modelcontextprotocol/servers/issues/4492","tags":[]},{"url":"https://github.com/modelcontextprotocol/servers/pull/4890","tags":[]},{"url":"https://vuldb.com/cve/CVE-2026-104120","tags":[]},{"url":"https://vuldb.com/submit/960099","tags":[]},{"url":"https://vuldb.com/vuln/412764","tags":[]},{"url":"https://vuldb.com/vuln/412764/cti","tags":[]}],"exploitRefs":[{"url":"https://github.com/modelcontextprotocol/servers/issues/4492","tags":[]},{"url":"https://github.com/modelcontextprotocol/servers/pull/4890","tags":[]}],"hasPoc":true,"ai":null}