Server-Side Request Forgery (SSRF) in n8n - #VU131361
Published: May 13, 2026
Vulnerability identifier: #VU131361
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:L/SC:L/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-918
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: n8n
Affected software:
n8n
n8n
Detailed vulnerability description
The vulnerability allows a remote user to cause the server to issue HTTP requests including credentials to unintended hosts.
The vulnerability exists due to server-side request forgery in the POST /rest/dynamic-node-parameters/options endpoint when handling requests for dynamic node parameter options. A remote user can send a crafted request to cause the server to issue HTTP requests including credentials to unintended hosts.
Exploitation requires access to the credential.
Remediation
Install security update from vendor's website.