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CVE-2026-72768

CVE-2026-72768 · n8n before 2.32.1 SSRF Protection Bypass via MCP Client

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 6.4 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • n8n

    Versions
    • ≥ 0, < 2.32.1: Affected (semver)
    • 2.32.1: Not affected (semver)

    Update to 2.32.1

  • n8n

    Versions
    • ≥ 0, < 2.31.5: Affected (semver)
    • 2.31.5: Not affected (semver)

    Update to 2.31.5

  • n8n npm

    Affected ranges
    • SEMVER: ≥ 2.32.0, < 2.32.1

    Update to 2.32.1

  • n8n npm

    Affected ranges
    • SEMVER: < 2.31.5

    Update to 2.31.5

Original sources

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