CVE-2026-21893— n8n Vulnerable to Command Injection in Community Package Installation
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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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
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
II. Public POCs 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
- CVE-2026-42237
n8n: SQL Injection in Snowflake and MySQL Nodes - CVE-2026-42236
n8n: Unauthenticated Denial of Service via MCP Client Regist - CVE-2026-42235
n8n: XSS via MCP OAuth client - CVE-2026-42234
n8n: Python Task Runner Sandbox Escape - CVE-2026-42233
n8n: SQL Injection in Oracle Database Node via Limit Field
Same vendor: n8n-io
- CVE-2026-42237
n8n: SQL Injection in Snowflake and MySQL Nodes - CVE-2026-42236
n8n: Unauthenticated Denial of Service via MCP Client Regist - CVE-2026-42235
n8n: XSS via MCP OAuth client - CVE-2026-42234
n8n: Python Task Runner Sandbox Escape - CVE-2026-42233
n8n: SQL Injection in Oracle Database Node via Limit Field
Same weakness: CWE-78
- CVE-2026-8273
D-Link DNS-320 system_mgr.cgi cgi_merge_user os command inje - CVE-2026-8272
D-Link DNS-320 webfile_mgr.cgi chown os command injection - CVE-2026-8271
D-Link DNS-320 network_mgr.cgi cgi_upnp_edit os command inje - CVE-2026-8265
Tenda AC6 httpd getLogFile get_log_file os command injection - CVE-2026-8264
Tenda AC6 httpd WifiApScan formWifiApScan os command injecti
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