Command Injection Vulnerability in n8n Workflow Automation Platform
CVE-2026-21893

9.4CRITICAL

Key Information:

Vendor

N8n-io

Status
N8n
Vendor
CVE Published:
4 February 2026

What is CVE-2026-21893?

n8n, an open-source workflow automation platform, has a command injection vulnerability that affects versions from 0.187.0 to just before 1.120.3. This vulnerability allows authenticated users with administrative privileges to execute arbitrary system commands on the n8n host under specific conditions. It poses a significant risk, as malicious users can exploit this flaw to execute harmful commands, potentially compromising the host system. For enhanced security, it is essential to update to version 1.120.3 or later, where this issue has been effectively addressed.

Affected Version(s)

n8n >= 0.187.0, < 1.120.3

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-7c...
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https://github.com/n8n-io/n8n/commit/ae0669a736cc496beeb2...
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CVSS V4

Score:
9.4
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.