Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-59207— n8n: "Allowed HTTP Request Domains" Restriction Bypass via AI Agents MCP Connector

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公司开源的一个可扩展的工作流自动化工具。 n8n存在处理逻辑错误漏洞，该漏洞源于AI Agents功能未在MCP工具指向任意URL时强制执行凭据上配置的Allowed HTTP Request Domains限制，可能导致拥有只使用共享凭据权限的成员级用户将凭据秘密发送到其控制的外部服务器。以下版本受到影响：2.27.4之前版本和2.28.0至2.28.1之前版本。

AI Predicted 7.5 Difficulty: Easy EPSS 0.45% · P39

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 2

VendorProduct Version RangeStatus
n8n-io n8n >= 2.28.0, < 2.28.1 affected
< 2.27.4 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-59207

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
n8n: "Allowed HTTP Request Domains" Restriction Bypass via AI Agents MCP Connector
Source: CVE Program / CVE List V5
Vulnerability Description
n8n is an open source workflow automation platform. Prior to 2.27.4 and 2.28.1, the AI Agents feature did not enforce the Allowed HTTP Request Domains restriction configured on credentials when an MCP tool was pointed at an arbitrary URL, allowing a member-level user with use-only access to a shared credential to send its secret to an external server they control. This issue is fixed in versions 2.27.4 and 2.28.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
保护机制失效
Source: CVE Program / CVE List V5
Vulnerability Title
n8n 处理逻辑错误漏洞
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存在处理逻辑错误漏洞，该漏洞源于AI Agents功能未在MCP工具指向任意URL时强制执行凭据上配置的Allowed HTTP Request Domains限制，可能导致拥有只使用共享凭据权限的成员级用户将凭据秘密发送到其控制的外部服务器。以下版本受到影响：2.27.4之前版本和2.28.0至2.28.1之前版本。
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 >= 2.28.0, < 2.28.1 -

II. Public POCs for CVE-2026-59207

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-59207

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-59207 (1)

Vendor Advisories for CVE-2026-59207 (1)

Vendor Pages for CVE-2026-59207 (1)

Same Patch Batch · n8n-io · 2026-07-09 · 4 CVEs total

CVE-2026-59208 n8n: Cross-Issuer Token Exchange Account Binding via Subject-Only Identity Resolution
CVE-2026-59206 n8n: Prototype Pollution via Workflow Credentials Leads to Unauthenticated User and Projec
CVE-2026-59209 n8n: Shared Credential Header Leak via HTTP Request Pagination Expression

IV. Related Vulnerabilities

Same product: n8n
Same vendor: n8n-io
Same weakness: CWE-693