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CVE-2026-72771— n8n before 2.32.1 Credential Restriction Bypass via AI/LLM Nodes

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公司开源的一款支持持续集成与交付的工作流自动化工具。 n8n 2.32.1之前版本存在授权问题漏洞，该漏洞源于多个AI和LLM节点中未强制执行Allowed HTTP Request Domains白名单，可能导致低权限工作流编辑者将请求重定向至攻击者控制的主机并泄露共享凭据秘密。

CVSS 7.1 · High EPSS 0.36% · P27

Affected Version Matrix 4

VendorProduct Version RangeStatus
n8n-io n8n < 2.32.1 affected
2.32.1 unaffected
< 2.31.5 affected
2.31.5 unaffected
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I. Basic Information for CVE-2026-72771

Vulnerability Information
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Vulnerability Title
n8n before 2.32.1 Credential Restriction Bypass via AI/LLM Nodes
Source: CVE Program / CVE List V5
Vulnerability Description
n8n versions before 2.32.1 fail to enforce the Allowed HTTP Request Domains allowlist in multiple AI and LLM nodes when user-supplied base or endpoint URLs are configured. Low-privileged workflow editors with use-only access to shared credentials can redirect requests to attacker-controlled hosts and exfiltrate credential secrets for reuse against underlying services.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
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公司开源的一款支持持续集成与交付的工作流自动化工具。 n8n 2.32.1之前版本存在授权问题漏洞，该漏洞源于多个AI和LLM节点中未强制执行Allowed HTTP Request Domains白名单，可能导致低权限工作流编辑者将请求重定向至攻击者控制的主机并泄露共享凭据秘密。
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

Vendor Product Affected Versions CPE Subscribe
n8n-io n8n 0 ~ 2.32.1 -
n8n-io n8n 0 ~ 2.31.5 -

II. Public POCs for CVE-2026-72771

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III. Intelligence Information for CVE-2026-72771

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Vendor Advisories for CVE-2026-72771 (1)

Other References for CVE-2026-72771 (1)

Same Patch Batch · n8n-io · 2026-08-11 · 16 CVEs total

CVE-2026-72772 8.9 HIGH n8n before 2.32.1 Authentication Bypass via Token Exchange
CVE-2026-72765 8.7 HIGH n8n before 2.32.1 Remote Code Execution via Expression Sandbox Escape
CVE-2026-72767 8.7 HIGH n8n before 1.123.67 Remote Code Execution via Git node
CVE-2026-72766 8.2 HIGH n8n before 1.123.67 Arbitrary File Read via Send Email Node
CVE-2026-72762 7.7 HIGH n8n before 1.123.67 Arbitrary File Write via Edit Image Node
CVE-2026-72763 7.2 HIGH n8n before 1.123.67 Credential Exfiltration via Sub-Workflow
CVE-2026-72774 7.1 HIGH n8n before 1.123.67 Authentication Bypass via HTTP Request Node
CVE-2026-72770 7.1 HIGH n8n before 1.123.67 Path Traversal via Git Node Operations
CVE-2026-72749 7.1 HIGH n8n before 1.123.67 Prototype Pollution via Edit Fields
CVE-2026-72768 6.4 MEDIUM n8n before 2.32.1 SSRF Protection Bypass via MCP Client
CVE-2026-72769 6.1 MEDIUM n8n before 1.123.67 Prototype Pollution via VM Expression Engine
CVE-2026-72775 5.8 MEDIUM n8n before 1.123.67 SQL Injection via PostgresTrigger Node
CVE-2026-72764 5.8 MEDIUM n8n before 1.123.67 Module Cache Poisoning via Code Node
CVE-2026-72750 5.3 MEDIUM n8n before 1.123.67 SQL Injection via executeQuery Operation
CVE-2026-72773 4.9 MEDIUM n8n before 2.32.1 Path Traversal via computer-use search_files

IV. Related Vulnerabilities

Same product: n8n
Same vendor: n8n-io
Same weakness: CWE-863

V. Comments for CVE-2026-72771

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