---
cve: "CVE-2026-54307"
severity: "HIGH"
cvss: 8.5
epss: "0.4%"
vendor: "n8n-io"
kev: false
exploited: false
published: "2026-06-23 17:17:07"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T14:47:24+02:00"
---

# CVE-2026-54307

> 8.5 HIGH · 🧪 PoC

## Beschreibung

n8n is an open source workflow automation platform. Prior to 1.123.55, 2.25.7, and 2.26.2, a member-level user with editor access to a shared workflow could reference credentials they do not own via specific public API endpoints. Credential ownership checks were only enforced partially leading to cross-user credential access. This issue affects instances where workflow sharing is enabled and at least one workflow has been shared with a member-level user as an Editor. This vulnerability is fixed in 1.123.55, 2.25.7, and 2.26.2.

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:L
```

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

## Patch verfügbar (OSV)

- 6c8a27591e5d1c43bc2270e83dbde69d75c06215 (Commit)
- b06d9b5dfb9d8f709569e76a646a7ccc687db23c (Commit)

## Referenzen

- <https://github.com/n8n-io/n8n/security/advisories/GHSA-pmqw-72cg-wx85>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-54307) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_