n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal or blocked hosts without routing through SSRF protection, exposing internal services and reading responses back through the workflow.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| n8n-io | n8n | unaffected |
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| n8n-io | n8n | unaffected |
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Advisories
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Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 11 Aug 2026 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | n8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypass SSRF protections. Attackers can craft workflows that send requests to internal or blocked hosts without routing through SSRF protection, exposing internal services and reading responses back through the workflow. | |
| Title | n8n before 2.32.1 SSRF Protection Bypass via MCP Client | |
| First Time appeared |
N8n
N8n n8n |
|
| Weaknesses | CWE-918 | |
| CPEs | cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* | |
| Vendors & Products |
N8n
N8n n8n |
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| References |
| |
| Metrics |
cvssV4_0
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Projects
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MITRE
Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-08-11T12:17:08.540Z
Reserved: 2026-08-10T15:06:16.417Z
Link: CVE-2026-72768
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses