n8n: Mehrere Schwachstellen
WID-SEC-2026-3898 · first 14.10.2026 · updated 14.10.2026 · CVSS 8,7
What it is about
n8n ist ein Workflow-Automatisierungstool, mit dem verschiedene Anwendungen und Dienste miteinander verbunden werden können, um Aufgaben zu automatisieren. Ein Angreifer kann mehrere Schwachstellen in n8n ausnutzen, um seine Privilegien zu erhöhen, Sicherheitsmaßnahmen zu umgehen, Daten offenzulegen oder zu manipulieren, Cross-Site-Scripting-Angriffe durchzuführen oder Denial-of-Service-Zustände herbeizuführen.
Under what conditions?
The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.
What can happen in the worst case
An attacker could use the vulnerability to
- seine Privilegien zu erhöhen
- Sicherheitsmaßnahmen zu umgehen
- Daten offenzulegen oder zu manipulieren
- Cross-Site-Scripting-Angriffe durchzuführen oder Denial-of-Service-Zustände herbeizuführen
Am I affected?
Affected according to the BSI:
- n8n n8n <2.43.5
- n8n n8n <2.44.1
- n8n n8n <1.123.85
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- n8n n8n 2.43.5
- n8n n8n 2.44.1
- n8n n8n 1.123.85
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- GitHub Security Advisory GHSA-3c3p-5959-3ghr vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-43v8-hjhm-chjp vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-65mv-v8rp-54wc vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-8crx-5h96-q72q vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-8vrr-mgc5-jg55 vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-crfj-5wv6-8v86 vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-cwm2-vhf5-27q9 vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-fvv4-gmv9-xqf5 vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-m7gv-mpg5-7c9v vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-mgpr-56r4-5c67 vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-mp7q-23hg-35cf vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-pcr3-v5vr-qppf vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-qmvv-q3c9-wpp7 vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-v9cx-v88r-42vw vom 2026-10-13 github.com
- GitHub Security Advisory GHSA-wvjj-qg37-pv73 vom 2026-10-13 github.com
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.