CVE-2026-56348

CVE-2026-56348CVE-2026-56348

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.

Scoring

CVSS 9.1 ()
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L
Last modified2026-06-23
Sourced from NVD. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.
CVE-2026-56348: CVE-2026-56348 | SQUR KB