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CVE-2026-59207

n8n: "Allowed HTTP Request Domains" Restriction Bypass via AI Agents MCP Connector

Published: Jul 9, 2026Updated: Jul 9, 2026 Sources: CVE List NVDCWE-693
6.5MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 82.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-693NVD-CWE-noinfo

Affected Products

n8n
oss-project
n8nSaaSWeb App
Cloud & SaaS / saas-application
n8n-io
commercial·DEaka n8n
n8nOn-premWeb App
Cloud & SaaS / container-orchestration

Exploitability

Official Patch Available
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References

https://github.com/n8n-io/n8n/releases/tag/n8n%402.27.4
github.com
https://github.com/n8n-io/n8n/releases/tag/n8n%402.28.1
github.com
https://github.com/n8n-io/n8n/security/advisories/GHSA-h44j-f5r5-ph73
github.com

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