{"id":"CVE-2026-104120","aliases":["EUVD-2026-91161","GHSA-v78q-44mm-wf7q"],"status":"published","title":"modelcontextprotocol mcp-server-fetch/mcp-server-everything Fetch Tool server.py fetch_url server-side request forgery","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.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00288,"percentile":0.21623,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-918"],"published":"2026-10-02T02:15:18Z","modified":"2026-11-09T10:45:13Z","products":[{"vendor":"modelcontextprotocol","product":"mcp-server-everything"},{"vendor":"modelcontextprotocol","product":"mcp-server-fetch"}],"references":[{"url":"https://vuldb.com/vuln/412764","tags":["vdb-entry","technical-description","advisory"]},{"url":"https://vuldb.com/vuln/412764/cti","tags":["signature","permissions-required","report"]},{"url":"https://vuldb.com/cve/CVE-2026-104120","tags":["third-party-advisory","advisory"]},{"url":"https://vuldb.com/submit/960099","tags":["third-party-advisory","advisory"]},{"url":"https://github.com/modelcontextprotocol/servers/issues/4492","tags":["exploit","issue-tracking","report"]},{"url":"https://github.com/modelcontextprotocol/servers/pull/4890","tags":["issue-tracking","patch","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104120","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-v78q-44mm-wf7q"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104120.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-104120","title":"modelcontextprotocol mcp-server-fetch/mcp-server-everything Fetch Tool server.py fetch_url server-side request forgery","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.","status":"published","published":"2026-10-02T02:15:18.514Z","modified":"2026-10-06T02:27:50.199Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium","assessor":"cna"},{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C","level":"high","assessor":"cna"},{"version":"3.0","score":7.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C","level":"high","assessor":"cna"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:C","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:20:09.448255Z"}],"euvd":[{"id":"EUVD-2026-91161","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.","status":"published","published":"2026-10-02T02:15:18Z","modified":"2026-10-06T02:27:50Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium"}],"updated_at":"2026-11-02T17:27:38.724649Z"}],"ghsa":[{"id":"GHSA-v78q-44mm-wf7q","title":"A security vulnerability has been detected in modelcontextprotocol mcp-server-fetch and mcp...","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.","status":"published","published":"2026-10-02T03:31:10Z","modified":"2026-10-02T03:31:14Z","cvss":[{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:12:41.838372Z"}],"nvd":[{"id":"CVE-2026-104120","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.","status":"published","published":"2026-10-02T03:16:38.84Z","modified":"2026-10-06T03:16:59.463Z","cvss":[{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"secondary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"secondary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:12:53.41762Z"}],"osv":[{"id":"CVE-2026-104120","title":"modelcontextprotocol mcp-server-fetch/mcp-server-everything Fetch Tool server.py fetch_url server-side request forgery","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.","status":"published","published":"2026-10-02T02:15:18.514Z","modified":"2026-11-09T10:45:13.370326092Z","cvss":[{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","level":"medium"}],"cwes":["CWE-918"],"updated_at":"2026-11-09T10:53:57.550641Z"}]}}