| Component | n8n |
| Severity | medium (CVSS 6.3) |
| CVSS vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/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) | 2026-07-15 |
| Affected versions | < 2.28.1 read from the advisory text: NVD has not published CPE data yet |
| Fixed in | 2.28.1 |
| Weakness | CWE-639 |
| CISA KEV | not listed |
NVD description
n8n before 2.28.1 contains an information disclosure vulnerability where external secrets are incorrectly resolved in workflow node expressions outside credentials scope. Authenticated project editors can read plaintext external secret values by referencing them in node expressions without requiring explicit secrets access permissions.
What to do
- Upgrade n8n to
2.28.1or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-59254
- https://github.com/n8n-io/n8n/security/advisories/GHSA-2434-3x6q-8r99
- https://www.vulncheck.com/advisories/n8n-external-secrets-disclosure-via-workflow-node-expressions
Read more
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