CVE-2026-72764

Summary

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.

Affected Software

Weaknesses

• CWE-668: Exposure of Resource to Wrong Sphere

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: partial

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

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