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CVE-2026-21893— n8n Vulnerable to Command Injection in Community Package Installation

Quick assessment

Affected
n8n-io n8n
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

n8n是n8n开源的一个可扩展的工作流自动化工具。 n8n 0.187.0版本至1.120.3之前版本存在操作系统命令注入漏洞，该漏洞源于社区包安装功能存在命令注入，可能允许具有管理权限的认证用户在特定条件下在n8n主机上执行任意系统命令。

AI Predicted 8.6 Difficulty: Moderate EPSS 1.56% · P75

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-21893

Vulnerability Information
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Vulnerability Title
n8n Vulnerable to Command Injection in Community Package Installation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: CVE Program / CVE List V5
Vulnerability Title
n8n 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
n8n是n8n开源的一个可扩展的工作流自动化工具。 n8n 0.187.0版本至1.120.3之前版本存在操作系统命令注入漏洞，该漏洞源于社区包安装功能存在命令注入，可能允许具有管理权限的认证用户在特定条件下在n8n主机上执行任意系统命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
n8n-io n8n >= 0.187.0, < 1.120.3 -

II. Public POCs for CVE-2026-21893

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III. Intelligence Information for CVE-2026-21893

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Same Patch Batch · n8n-io · 2026-02-04 · 10 CVEs total

CVE-2025-61917 7.7 HIGH n8n Unsafe Buffer Allocation Allows In-Process Memory Disclosure in Task Runner
CVE-2026-25056 n8n Arbitrary File Write leading to RCE in n8n Merge Node
CVE-2026-25053 n8n is Vulnerable to OS Command Injection in Git Node
CVE-2026-25055 n8n Arbitrary File Write on Remote Systems via SSH Node
CVE-2026-25051 n8n Improper CSP Enforcement in Webhook Responses May Allow Stored XSS
CVE-2026-25115 n8n is vulnerable to Python sandbox escape
CVE-2026-25052 n8n Improper File Access Controls Allow Arbitrary File Read by Authenticated Users
CVE-2026-25054 n8n is Vulnerable to Stored Cross-Site Scripting via Markdown Rendering in Workflow UI
CVE-2026-25049 n8n Has an Expression Escape Vulnerability Leading to RCE

IV. Related Vulnerabilities

Same product: n8n
Same vendor: n8n-io
Same weakness: CWE-78