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CVE-2026-25051— n8n Improper CSP Enforcement in Webhook Responses May Allow Stored XSS

EPSS 0.01% · P2
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I. Basic Information for CVE-2026-25051

Vulnerability Information
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Vulnerability Title
n8n Improper CSP Enforcement in Webhook Responses May Allow Stored XSS
Source: NVD (National Vulnerability Database)
Vulnerability Description
n8n is an open source workflow automation platform. Prior to version 1.123.2, a Cross-Site Scripting (XSS) vulnerability has been identified in the handling of webhook responses and related HTTP endpoints. Under certain conditions, the Content Security Policy (CSP) sandbox protection intended to isolate HTML responses may not be applied correctly. An authenticated user with permission to create or modify workflows could abuse this to execute malicious scripts with same-origin privileges when other users interact with the crafted workflow. This could lead to session hijacking and account takeover. This issue has been patched in version 1.123.2.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
n8n 跨站脚本漏洞
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 1.123.2之前版本存在跨站脚本漏洞，该漏洞源于Webhook响应和HTTP端点处理不当，可能导致跨站脚本攻击、会话劫持和账户接管。
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

VendorProductAffected VersionsCPESubscribe
n8n-ion8n < 1.123.2 -

II. Public POCs for CVE-2026-25051

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III. Intelligence Information for CVE-2026-25051

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

CVE-2025-619177.7 HIGHn8n Unsafe Buffer Allocation Allows In-Process Memory Disclosure in Task Runner
CVE-2026-25056n8n Arbitrary File Write leading to RCE in n8n Merge Node
CVE-2026-25053n8n is Vulnerable to OS Command Injection in Git Node
CVE-2026-25055n8n Arbitrary File Write on Remote Systems via SSH Node
CVE-2026-25115n8n is vulnerable to Python sandbox escape
CVE-2026-25052n8n Improper File Access Controls Allow Arbitrary File Read by Authenticated Users
CVE-2026-25054n8n is Vulnerable to Stored Cross-Site Scripting via Markdown Rendering in Workflow UI
CVE-2026-25049n8n Has an Expression Escape Vulnerability Leading to RCE
CVE-2026-21893n8n Vulnerable to Command Injection in Community Package Installation

IV. Related Vulnerabilities

Same product: n8n
Same vendor: n8n-io
Same weakness: CWE-79

V. Comments for CVE-2026-25051

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