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CVE-2026-56348

CVE-2026-56348 · n8n - Credential Exfiltration via Allowed HTTP Request Domains Bypass in Dynamic Node Parameters Endpoint

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

n8n before 2.20.0 contains a credential exfiltration vulnerability in the POST /rest/dynamic-node-parameters/options endpoint that allows authenticated users to bypass Allowed HTTP Request Domains restrictions. Attackers with credential access can cause the n8n server to issue HTTP requests with credentials to unauthorized hosts, exfiltrating sensitive authentication data.

CVSS 5.3 · Medium · EPSS 0.5% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • n8n

    Versions
    • ≥ 0, < 2.20.0: Affected (semver)
    • 2.20.0: Not affected (semver)

    Update to 2.20.0

  • n8n npm

    Affected ranges
    • SEMVER: < 2.20.0

    Update to 2.20.0

Original sources

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