New Vulnerability in N8n
Cybersecurity

New Vulnerability in N8n

Schneier on Security
Schneier on Security•Jan 15, 2026

Why It Matters

Given n8n’s popularity for workflow automation, exploitation could lead to widespread data breaches and operational disruption. Prompt remediation is essential to protect enterprise integrations and supply‑chain integrity.

New Vulnerability in n8n

Posted on January 15, 2026 at 7:05 AM

We discovered a critical vulnerability (CVE‑2026‑21858, CVSS 10.0) in n8n that enables attackers to take over locally deployed instances, impacting an estimated 100,000 servers globally. No official workarounds are available for this vulnerability. Users should upgrade to version 1.121.0 or later to remediate the vulnerability.

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