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CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-56348

n8n - Credential Exfiltration via Allowed HTTP Request Domains Bypass in Dynamic Node Parameters Endpoint

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Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

n8n n8n

Default version status: unaffected

  • 0 to < 2.20.0affected
  • 2.20.0unaffected
pkg:npm/n8n

References