Vulnerability in N8n
CVE-2026-72764
n8n's JavaScript task runner shared a single module cache across all users' Code-node executions. In affected versions (before 1.123.67, 2.31.5, and 2.32.1), a user able to run a Code node could poison a cached module and thereby alter other users' Code-node executions on the same runner, affecting their confidentiality, integrity, or availability. This is a cross-user isolation break within a single n8n instance and does not constitute a sandbox escape or remote code execution. Only multi-user instances running the JS task runner with built-in or external modules enabled are affected.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (55.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.2% 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: 0.008 · change: +0.004
Affected products
- N8n — versions 2.32.0
- N8n-Io N8n — versions 0, 1.123.67, 2.32.1
Weakness classification (CWE)
References
- github.com/n8n-io/n8n/security/advisories/GHSA-9cmh-xcqm-5hqr (vendor-advisory, Mitigation, Vendor Advisory)
- www.vulncheck.com/advisories/n8n-before-module-cache-poisoning-via-code-node (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-72764?
- CVE-2026-72764 is a high-severity vulnerability in N8n, classified under Exposure of Resource to Wrong Sphere. CVSS score: 8.8/10. Published 2026-08-11.
- How severe is CVE-2026-72764?
- High severity. CVSS v3 base score is 8.8 out of 10.