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.
- Score
- CVSS 3.1 8.8 High
- Status
- Analyzed - disclosure@vulncheck.com
- Published
- 2026-08-11
- Last modified
- 2026-10-24
- Weaknesses
- CWE-668
Affected products
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-9cmh-xcqm-5hqr
- https://www.vulncheck.com/advisories/n8n-before-module-cache-poisoning-via-code-node
