PT-2026-56816 · N8N · N8N
CVE-2026-59207
·
Published
2026-07-09
·
Updated
2026-07-22
CVSS v4.0
7.1
High
| Vector | AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N |
Name of the Vulnerable Software and Affected Versions
n8n versions prior to 2.27.4
n8n versions prior to 2.28.1
Description
The AI Agents feature fails to enforce the Allowed HTTP Request Domains restriction configured on credentials when an MCP tool is directed to an arbitrary URL. This allows a member-level user with use-only access to a shared credential to exfiltrate the credential secret to an external server under their control.
Recommendations
Update to version 2.27.4 or later.
Update to version 2.28.1 or later.
Exploit
Fix
Protection Mechanism Failure
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Weakness Enumeration
Related Identifiers
Affected Products
N8N