CVE-2026-59254: medium-severity vulnerability in n8n
n8n - External Secrets Disclosure via Workflow Node Expressions
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.3epss 0.4%
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.
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
Affected products
n8n · n8nRelated CVEs — n8n
In the same product, most dangerous first.
CVE-2026-59257MEDIUMn8n - SQL Injection in MySQL v1 executeQuery Operation via Expression InterpolationEPSS 0.6%CVE-2025-71380HIGHn8n - Arbitrary Command Execution via Execute Command NodeEPSS 0.6%CVE-2026-56348MEDIUMn8n - Credential Exfiltration via Allowed HTTP Request Domains Bypass in Dynamic Node Parameters EndpointEPSS 0.5%CVE-2026-56349MEDIUMn8n - Guardrail Node Bypass via Crafted InputEPSS 0.5%CVE-2026-59259MEDIUMn8n - Permission Bypass via Expression Parser Mismatch in External SecretsEPSS 0.4%CVE-2026-58661MEDIUMn8n - Disk Space Exhaustion via Data-Table File Upload EndpointEPSS 0.4%