CVE-2026-103247
HIGH
NVD
CVSS Score
8.5
Severity
HIGH
Published
Oct 01, 2026
Vendor
unknown
Description
n8n versions before 1.123.80 contain a credential tampering vulnerability where duplicate node IDs bypass the workflow credential tamper guard. Attackers with editor access to shared workflows can exploit mismatched node ID and name matching to retain victim credentials and redirect secrets to attacker-controlled hosts.