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CVE-2026-33663— n8n Vulnerable to Credential Theft via Name-Based Resolution and Permission Checker Bypass in Community Edition

EPSS 0.02% · P5
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I. Basic Information for CVE-2026-33663

Vulnerability Information
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Vulnerability Title
n8n Vulnerable to Credential Theft via Name-Based Resolution and Permission Checker Bypass in Community Edition
Source: NVD (National Vulnerability Database)
Vulnerability Description
n8n is an open source workflow automation platform. Prior to versions 2.14.1, 2.13.3, and 1.123.27, an authenticated user with the `global:member` role could exploit chained authorization flaws in n8n's credential pipeline to steal plaintext secrets from generic HTTP credentials (`httpBasicAuth`, `httpHeaderAuth`, `httpQueryAuth`) belonging to other users on the same instance. The attack abuses a name-based credential resolution path that does not enforce ownership or project scope, combined with a bypass in the credentials permission checker that causes generic HTTP credential types to be skipped during pre-execution validation. Together, these flaws allow a member-role user to resolve another user's credential ID and execute a workflow that decrypts and uses that credential without authorization. Native integration credential types (e.g. `slackApi`, `openAiApi`, `postgres`) are not affected by this issue. This vulnerability affects Community Edition only. Enterprise Edition has additional permission gates on workflow creation and execution that independently block this attack chain. The issue has been fixed in n8n versions 1.123.27, 2.13.3, and 2.14.1. 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 instance access to fully trusted users only, and/or audit credentials stored on the instance and rotate any generic HTTP credentials (`httpBasicAuth`, `httpHeaderAuth`, `httpQueryAuth`) that may have been exposed. These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过用户控制密钥绕过授权机制
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 2.14.1之前版本、2.13.3之前版本和1.123.27之前版本存在安全漏洞，该漏洞源于授权链缺陷和凭据权限检查器绕过，可能导致明文凭据泄露。
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

VendorProductAffected VersionsCPESubscribe
n8n-ion8n < 1.123.27 -

II. Public POCs for CVE-2026-33663

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III. Intelligence Information for CVE-2026-33663

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Same Patch Batch · n8n-io · 2026-03-25 · 11 CVEs total

CVE-2026-27496n8n has In-Process Memory Disclosure in its Task Runner
CVE-2026-33660n8n Has Multiple Remote Code Execution Vulnerabilities in Merge Node AlaSQL SQL Mode
CVE-2026-33665n8n: LDAP Email-Based Account Linking Allows Privilege Escalation and Account Takeover
CVE-2026-33696n8n Vulnerable to Prototype Pollution in XML & GSuiteAdmin node parameters lead to RCE
CVE-2026-33713n8n Vulnerable to SQL Injection in Data Table Node via orderByColumn Expression
CVE-2026-33722n8n Has External Secrets Authorization Bypass in Credential Saving
CVE-2026-33720n8n Has Authorization Bypass in OAuth Callback via N8N_SKIP_AUTH_ON_OAUTH_CALLBACK
CVE-2026-33724n8n's Source Control SSH Configuration Uses StrictHostKeyChecking=no
CVE-2026-33749n8n Vulnerable to XSS via Binary Data Inline HTML Rendering
CVE-2026-33751n8n Vulnerable to LDAP Filter Injection in LDAP Node

IV. Related Vulnerabilities

Same product: n8n
Same vendor: n8n-io
Same weakness: CWE-639

V. Comments for CVE-2026-33663

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