CVE-2026-25049— n8n Has an Expression Escape Vulnerability Leading to RCE
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I. Basic Information for CVE-2026-25049
Vulnerability Information
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Vulnerability Title
n8n Has an Expression Escape Vulnerability Leading to RCE
Source: NVD (National Vulnerability Database)
Vulnerability Description
n8n is an open source workflow automation platform. Prior to versions 1.123.17 and 2.5.2, an authenticated user with permission to create or modify workflows could abuse crafted expressions in workflow parameters to trigger unintended system command execution on the host running n8n. This issue has been patched in versions 1.123.17 and 2.5.2.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
动态管理代码资源的控制不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
n8n 安全漏洞
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 1.123.17之前版本和2.5.2之前版本存在安全漏洞，该漏洞源于经过身份验证的用户可利用工作流参数中的表达式，可能导致主机命令执行。
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-2026-25049
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | 有关CVE-2026-25049做了一个模拟沙盒来理解 | https://github.com/otakuliu/Expression-Sandbox-Escape-Simulation-Lab | POC Details |
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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-2026-21893 | n8n Vulnerable to Command Injection in Community Package Installation |
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-913
- CVE-2026-34156
NocoBase Affected by Sandbox Escape to RCE via console._stdo - CVE-2026-33286
Graphiti Affected by Arbitrary Method Execution via Unvalida - CVE-2025-69219
Apache Airflow Providers Http: Unsafe Pickle Deserialization - CVE-2026-1770
Improper Control of Dynamically-Managed Code Resources in Cr - CVE-2025-68613
n8n Vulnerable to Remote Code Execution via Expression Injec
V. Comments for CVE-2026-25049
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