WID-SEC-W-2026-0532

csafDEcert_bund

DeutschShown in its original language — a full translation is planned for a future version.

n8n: Mehrere Schwachstellen

view advisory published 2026-02-25

Ein Angreifer kann mehrere Schwachstellen in n8n ausnutzen, um beliebigen Programmcode auszuführen, um Sicherheitsvorkehrungen zu umgehen, um Daten zu manipulieren, um einen SQL-Injection Angriff durchzuführen, und um einen Cross-Site Scripting Angriff durchzuführen.

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describes (12)

Related CVEs.

IDseverity exploitable
CVE-2026-56353US——
n8n contains an authentication bypass in the Chat Trigger node when configured with n8n User Auth (a non-default configuration). In affected releases — before 1.123.22, the 2.0.0 t…
CVE-2026-56349US——
n8n before version 2.10.0 contains an input validation vulnerability in the Guardrail node that allows attackers to bypass default guardrail instructions. End users can craft malic…
CVE-2026-56360US——
n8n before versions 1.123.18 and 2.6.2 fails to verify HMAC-SHA256 signatures on Zendesk webhooks in the ZendeskTrigger node. Attackers who know the webhook URL can send unsigned P…
CVE-2026-56350UShigh7.7—
n8n before 2.8.0 contains an authentication bypass vulnerability allowing authenticated SSO users to disable SSO enforcement through the API. Attackers can create local password cr…
CVE-2026-56357USmedium5.3—
n8n before 1.123.15 and 2.5.0 contains a webhook forgery vulnerability in the GitHub Webhook Trigger node that fails to implement HMAC-SHA256 signature verification. Attackers who…
CVE-2026-27578USmedium5.4—
n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could inject…
CVE-2026-27577UScritical9.9Exploit
n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, additional exploits in the expression evaluation of n8n have been identified and…
CVE-2026-27498UShigh8.8—
n8n is an open source workflow automation platform. Prior to versions 2.2.0 and 1.123.8, an authenticated user with permission to create or modify workflows could chain the Read/Wr…
CVE-2026-27497UShigh8.8—
n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could leverag…
CVE-2026-27495UScritical9.9Exploit
n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could exploit…
CVE-2026-27494UScritical9.9—
n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could use the…
CVE-2026-27493UScritical9.0—
n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, a second-order expression injection vulnerability existed in n8n's Form nodes tha…
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references

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