CVE-2026-21893 PUBLISHED

n8n Vulnerable to Command Injection in Community Package Installation

Assigner: GitHub_M
Reserved: 05.01.2026 Published: 04.02.2026 Updated: 04.02.2026

n8n is an open source workflow automation platform. From version 0.187.0 to before 1.120.3, a command injection vulnerability was identified in n8n’s community package installation functionality. The issue allowed authenticated users with administrative permissions to execute arbitrary system commands on the n8n host under specific conditions. This issue has been patched in version 1.120.3.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
CVSS Score: 9.4

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	High
Attack Complexity	Low	Integrity	High	Integrity	High
Attack Requirements	None	Availability	High	Availability	High
Privileges Required	High
User Interaction	None

CVSS 4.0

Product Status

Vendor	n8n-io
Product	n8n
Versions	Version >= 0.187.0, < 1.120.3 is affected

References

Problem Types

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') CWE
CWE-20: Improper Input Validation CWE