CVE-2026-33722— n8n Has External Secrets Authorization Bypass in Credential Saving
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 2.6.4之前版本和1.123.23之前版本存在安全漏洞，该漏洞源于凭据中引用外部密钥可绕过权限检查，可能导致明文密钥泄露。
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I. Basic Information for CVE-2026-33722
Vulnerability Information
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Vulnerability Title
n8n Has External Secrets Authorization Bypass in Credential Saving
Source: CVE Program / CVE List V5
Vulnerability Description
n8n is an open source workflow automation platform. Prior to versions 2.6.4 and 1.123.23, an authenticated user without permission to list external secrets could reference a secret by the external name in a credential and retrieve its plaintext value when saving the credential. This bypassed the `externalSecret:list` permission check and allowed access to secrets stored in connected vaults without admin or owner privileges. This issue requires the instance to have an external secrets vault configured. The attacker must know or be able to guess the name of a target secret. The issue has been fixed in n8n versions 1.123.23 and 2.6.4. Users should upgrade to one of these versions or later to remediate the vulnerability. If upgrading is not immediately possible, administrators should consider the following temporary mitigations: Restrict n8n access to fully trusted users only, and/or disable external secrets integration until the patch can be applied. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
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 2.6.4之前版本和1.123.23之前版本存在安全漏洞，该漏洞源于凭据中引用外部密钥可绕过权限检查，可能导致明文密钥泄露。
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-2026-33722
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-33722 (1)
Same Patch Batch · n8n-io · 2026-03-25 · 11 CVEs total
| CVE-2026-27496 | n8n has In-Process Memory Disclosure in its Task Runner | |
| CVE-2026-33660 | n8n Has Multiple Remote Code Execution Vulnerabilities in Merge Node AlaSQL SQL Mode | |
| CVE-2026-33663 | n8n Vulnerable to Credential Theft via Name-Based Resolution and Permission Checker Bypass | |
| CVE-2026-33665 | n8n: LDAP Email-Based Account Linking Allows Privilege Escalation and Account Takeover | |
| CVE-2026-33696 | n8n Vulnerable to Prototype Pollution in XML & GSuiteAdmin node parameters lead to RCE | |
| CVE-2026-33713 | n8n Vulnerable to SQL Injection in Data Table Node via orderByColumn Expression | |
| CVE-2026-33720 | n8n Has Authorization Bypass in OAuth Callback via N8N_SKIP_AUTH_ON_OAUTH_CALLBACK | |
| CVE-2026-33724 | n8n's Source Control SSH Configuration Uses StrictHostKeyChecking=no | |
| CVE-2026-33749 | n8n Vulnerable to XSS via Binary Data Inline HTML Rendering | |
| CVE-2026-33751 | n8n Vulnerable to LDAP Filter Injection in LDAP Node |
IV. Related Vulnerabilities
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CVE-2026-103256
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Same vendor: n8n-io
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CVE-2026-103259
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V. Comments for CVE-2026-33722
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