| Component | n8n |
| Severity | high (CVSS 7.1) |
| CVSS vector | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| Published (NVD) | 2026-10-14 |
| Affected versions | < 1.123.83 from the CVE Program record written by the CNA that assigned the CVE |
| Fixed in | 1.123.83 |
| Weakness | CWE-639 |
| CISA KEV | not listed |
NVD description
n8n before 1.123.83 contains an authorization bypass vulnerability that allows authenticated members to spoof workflow identity by supplying a trusted identifier in Execute Sub-workflow inline JSON mode. Attackers can set this identifier to resolve credentials from projects they do not belong to and modify another workflow's static data and error-workflow dispatch.
What to do
- Upgrade n8n to
1.123.83or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-110853
- https://github.com/n8n-io/n8n/security/advisories/GHSA-866p-xg8v-g2q7
- https://www.vulncheck.com/advisories/n8n-before-1.123.83-authorization-bypass-via-execute-sub-workflow-inline-json