High severity · published Aug 11, 2026
CVE-2026-72768
n8n before 2.32.1 SSRF Protection Bypass via MCP Client
8.3
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
N8
n8n · n8n-io
before 2.32.1; before 2.31.5 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-72768
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-72768
Mitigation
https://github.com/n8n-io/n8n/security/advisories/GHSA-vhf8-cg2h-cg3p
Third Party Advisory
https://www.vulncheck.com/advisories/n8n-before-ssrf-protection-bypass-via-mcp-client
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