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CVE-2026-39974 n8n-MCP has an Authenticated SSRF via instance-URL header in multi-tenant HTTP mode
| Reporter | Title | Published | Views | Family All 14 |
|---|---|---|---|---|
 | CVE-2026-39974 | 9 Apr 202616:45 | – | attackerkb |
 | The vulnerability of the server for automating work processes in n8n-MCP, related to insufficient validation of requests on the server side, allows attackers to influence the integrity and accessibility of protected information. | 16 Apr 202600:00 | – | bdu_fstec |
 | CVE-2026-39974 | 9 Apr 202619:22 | – | circl |
 | n8n-MCP 代码问题漏洞 | 9 Apr 202600:00 | – | cnnvd |
 | CVE-2026-39974 | 9 Apr 202616:45 | – | cve |
 | EUVD-2026-20968 | 9 Apr 202616:45 | – | euvd |
 | n8n-mcp has authenticated SSRF via instance-URL header in multi-tenant HTTP mode | 8 Apr 202619:53 | – | github |
 | CVE-2026-39974 | 9 Apr 202617:16 | – | nvd |
 | CVE-2026-39974 n8n-MCP has an Authenticated SSRF via instance-URL header in multi-tenant HTTP mode | 9 Apr 202616:45 | – | osv |
| GHSA-4GGG-H7PH-26QR n8n-mcp has authenticated SSRF via instance-URL header in multi-tenant HTTP mode | 8 Apr 202619:53 | – | osv |
10
[
{
"vendor": "czlonkowski",
"product": "n8n-mcp",
"versions": [
{
"version": "< 2.47.4",
"status": "affected"
}
]
}
]Data
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09 Apr 2026 16:45Current
CVSS 3.18.5
EPSS0.00316