CVE-2026-21893
Unknown Unknown - Not Provided
Command Injection in n8n Community Package Allows Remote Code Execution

Publication date: 2026-02-04

Last updated on: 2026-02-20

Assigner: GitHub, Inc.

Description
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.
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Meta Information
Published
2026-02-04
Last Modified
2026-02-20
Generated
2026-06-16
AI Q&A
2026-02-04
EPSS Evaluated
2026-06-15
NVD
CVE-2026-21893
EUVD
EUVD-2026-5369
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
n8n n8n From 0.187.0 (inc) to 1.120.3 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-20 The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
CWE-78 The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
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Executive Summary

This vulnerability is a command injection issue found in the n8n workflow automation platform, specifically in its community package installation functionality. It affects versions from 0.187.0 up to but not including 1.120.3. Authenticated users with administrative permissions could exploit this flaw to execute arbitrary system commands on the host running n8n under certain conditions.

Impact Analysis

The vulnerability allows an attacker with administrative access to run arbitrary system commands on the server hosting n8n. This could lead to full system compromise, unauthorized data access, data modification, disruption of services, or further attacks within the network.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

To mitigate this vulnerability, upgrade the n8n platform to version 1.120.3 or later, where the command injection issue has been patched.

Ensure that only trusted users have administrative permissions, as the vulnerability requires authenticated users with such permissions to exploit.

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