Vulnerability in N8n
CVE-2026-27494
n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could use the Python Code node to escape the sandbox. The sandbox did no…
EPSS: 0.004 (27.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.9 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H.
Affected products
- N8n
- N8n-io N8n — versions < 1.123.22, >= 2.0.0, < 2.9.3, >= 2.10.0, < 2.10.1
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)
- security-advisories@github.com (Product, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC)
- security-advisories@github.com (Product, x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-27494?
- CVE-2026-27494 is a critical-severity vulnerability in N8n, classified under Exposure of Sensitive System Information to an Unauthorized Control Sphere. CVSS score: 9.9/10. Published 2026-02-25.
- How severe is CVE-2026-27494?
- Critical severity. CVSS v3 base score is 9.9 out of 10.