CVE-2026-103247GHSA-7gjv-rcf8-x5qc
n8n before 1.123.80 Credential Tampering via Duplicate Node IDs
n8n-io n8nFrameworks
CVSS
5.8MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.24%Chance of exploitation activity in the next 30 days, higher than 13% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 1.123.80n8nCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
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.
Text from CVE List
Affected versions 1
- n8naffected: all versions before 1.123.80CVE List