| Component | n8n |
| Severity | high (CVSS 8.5) |
| CVSS vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
| Published (NVD) | 2026-10-01 |
| Affected versions | < 1.123.80 read from the advisory text: NVD has not published CPE data yet |
| Fixed in | 1.123.80 |
| Weakness | CWE-639 |
| CISA KEV | not listed |
NVD 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.
What to do
- Upgrade n8n to
1.123.80or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-103247
- https://github.com/n8n-io/n8n/security/advisories/GHSA-7gjv-rcf8-x5qc
- https://www.vulncheck.com/advisories/n8n-before-1.123.80-credential-tampering-via-duplicate-node-ids
Read more
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