---
cve: "CVE-2026-72764"
severity: "MEDIUM"
cvss: 5.8
epss: "37%"
vendor: "n8n-io"
kev: false
exploited: false
published: "2026-08-11 13:19:06"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T09:49:37+02:00"
---

# CVE-2026-72764

> 5.8 MEDIUM · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- ff05cd3be8c4a8f2ac73f42b54f5213493810313 (Commit)
- 7d43cce19523691ee00d89bcc12786fd511d2329 (Commit)

## Referenzen

- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-72764) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_