RCE in N8n
CVE-2026-72765
n8n before 2.31.5 and before 2.32.1 contain a sandbox escape vulnerability in expression evaluation. An authenticated user with permission to create or modify workflows can craft expressions using arrow-function bodies to bypass the expression sandbox, triggering system command execution on the host running n8n. The issue is fixed in versions 2.31.5 and 2.32.1.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.009 (56.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.009 · change: +0.005
Affected products
- N8n — versions 2.32.0
- N8n-Io N8n — versions 0, 2.32.1, 2.31.5
Weakness classification (CWE)
References
- github.com/n8n-io/n8n/security/advisories/GHSA-gv7g-jm28-cr3m (vendor-advisory, Mitigation, Vendor Advisory)
- www.vulncheck.com/advisories/n8n-before-remote-code-execution-via-expression-sa… (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-72765?
- CVE-2026-72765 is a critical-severity vulnerability in N8n, classified under Code Injection. CVSS score: 9.9/10. Published 2026-08-11.
- How severe is CVE-2026-72765?
- Critical severity. CVSS v3 base score is 9.9 out of 10.