{"id":"CVE-2026-104120","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-104120","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…","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.","published":"2026-10-02T03:16:38.840","modified":"2026-10-02T03:16:38.840","cvss":{"score":7.3,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/modelcontextprotocol/servers/pull/4890","label":"modelcontextprotocol/servers#4890"},"references":[{"type":"WEB","url":"https://github.com/modelcontextprotocol/servers/issues/4492"},{"type":"WEB","url":"https://github.com/modelcontextprotocol/servers/pull/4890"},{"type":"WEB","url":"https://vuldb.com/cve/CVE-2026-104120"},{"type":"WEB","url":"https://vuldb.com/submit/960099"},{"type":"WEB","url":"https://vuldb.com/vuln/412764"},{"type":"WEB","url":"https://vuldb.com/vuln/412764/cti"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-10-02T03:16:38.840"}}