---
cve: "CVE-2026-86080"
severity: "MEDIUM"
cvss: 6.3
epss: "0.2%"
vendor: "n8n-io"
kev: false
exploited: false
published: "2026-09-08 22:19:16"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-20T21:45:56+02:00"
---

# CVE-2026-86080

> 6.3 MEDIUM · 🧪 PoC

## Beschreibung

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the GitHub Trigger generated a webhook secret but discarded it when GitHub returned HTTP 422 and the node reused an existing webhook. Workflow static data then retained webhookId without webhookSecret, and X-Hub-Signature-256 verification accepted deliveries without a stored secret. The affected logic includes packages/nodes-base/nodes/Github/GithubTriggerHelpers.ts and the 422 webhook reuse path. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- cbee391326797c19a2593934063311fed6131e07 (Commit)
- 2a4ca7868dc75edca4c575d6507021e1e6b0ec90 (Commit)

## Referenzen

- <https://github.com/n8n-io/n8n/security/advisories/GHSA-5m98-cgcr-xx3q>
- <https://github.com/n8n-io/n8n/releases/tag/n8n@1.123.76>
- <https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7>
- <https://github.com/n8n-io/n8n/releases/tag/n8n@2.38.2>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-86080) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_