RCE in N8n
CVE-2026-27495
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 exploit a vulnerability in the JavaScript Task Runner sandbox to e…
Vulnerability class: RCE (Remote Code Execution)
EPSS: 0.006 (44.6th 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)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Product, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
- security-advisories@github.com (x_refsource_MISC, Release Notes)
Frequently asked questions
- What is CVE-2026-27495?
- CVE-2026-27495 is a critical-severity vulnerability in N8n, classified under Code Injection. CVSS score: 9.9/10. Published 2026-02-25.
- How severe is CVE-2026-27495?
- Critical severity. CVSS v3 base score is 9.9 out of 10.
- Is CVE-2026-27495 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.