CVE-2026-59254: n8n

Medium severity, CVSS 6.3. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• n8n n8n: before 2.28.1 (fixed in 2.28.1); before 2.27.4 (fixed in 2.27.4)

Published 2026-07-15. Last modified 2026-07-15.