CVE-2026-56350— n8n - SSO Enforcement Bypass via API
Quick assessment
Affected
n8n 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公司开源的一个可扩展的工作流自动化工具。 n8n 2.8.0之前版本存在授权问题漏洞，该漏洞源于存在身份验证绕过漏洞，允许经过身份验证的SSO用户通过API禁用SSO强制策略，攻击者可以创建本地密码凭据直接进行身份验证，绕过组织SSO策略和身份提供商强制实施的多因素身份验证。
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I. Basic Information for CVE-2026-56350
Vulnerability Information
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Vulnerability Title
n8n - SSO Enforcement Bypass via API
Source: CVE Program / CVE List V5
Vulnerability Description
n8n before 2.8.0 contains an authentication bypass vulnerability allowing authenticated SSO users to disable SSO enforcement through the API. Attackers can create local password credentials to authenticate directly, bypassing organizational SSO policies and identity-provider-enforced multi-factor authentication.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
n8n 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
n8n是n8n公司开源的一个可扩展的工作流自动化工具。 n8n 2.8.0之前版本存在授权问题漏洞，该漏洞源于存在身份验证绕过漏洞，允许经过身份验证的SSO用户通过API禁用SSO强制策略，攻击者可以创建本地密码凭据直接进行身份验证，绕过组织SSO策略和身份提供商强制实施的多因素身份验证。
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-2026-56350
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-56350 (2)
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🔗 n8n - SSO Enforcement Bypass via API | Advisories | VulnCheck third-party-advisory
Same Patch Batch · n8n · 2026-06-30 · 3 CVEs total
| CVE-2026-56356 | 5.4 MEDIUM | n8n - Stored Cross-Site Scripting in Chat Trigger Node Custom CSS Field |
| CVE-2026-56777 | 5.0 MEDIUM | n8n - AST Validator Bypass in Python Code Node |
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V. Comments for CVE-2026-56350
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