CVE-2026-56348 (GCVE-0-2026-56348)
Vulnerability from cvelistv5
Published
2026-06-22 21:04
Modified
2026-06-23 12:27
Severity ?
5.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:L/SA:L
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Summary
n8n before 2.20.0 contains a credential exfiltration vulnerability in the POST /rest/dynamic-node-parameters/options endpoint that allows authenticated users to bypass Allowed HTTP Request Domains restrictions. Attackers with credential access can cause the n8n server to issue HTTP requests with credentials to unauthorized hosts, exfiltrating sensitive authentication data.
References
Impacted products
Vendor Product Version
n8n n8n Version: 0   ≤
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