CVE-2026-72768
highn8n versions before 2.32.1 contain a server-side request forgery protection bypass vulnerability in the MCP Client node that allows authenticated users to bypa…
Vendor / product: N8n — n8n
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
8.3
8.3 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-08-11 13:19
Modified: 2026-10-29 20:17
NVD status: Analyzed
Last synced 10 hours ago
Verified against the source API 2026-10-29 20:26 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
n8n / n8n ≥2.31.0 <2.31.5, 2.32.0
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://github.com/n8n-io/n8n/security/advisories/GHSA-vhf8-cg2h-cg3p
References
- https://github.com/n8n-io/n8n/security/advisories/GHSA-vhf8-cg2h-cg3p disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/n8n-before-ssrf-protection-bypass-via-mcp-client disclosure@vulncheck.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-29 20:26 UTC · record ↗