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CVE-2026-56348

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

Description (CNA)

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 (CNA)

Vendor / productVersions
n8n / n8naffected 0 before 2.20.0; unaffected 2.20.0

CWE

CWE-918

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.