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CVE-2026-86074

CVE-2026-86074 · n8n: Instance AI Credential Setup Accepts Unvalidated Probe URL from Fetched Content

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

n8n is an open source workflow automation platform. Prior to 2.37.7 and 2.38.2, the Instance AI credential setup flow accepted a credential test or verification URL without checking that it matched the workflow node's origin. Attacker-controlled fetched content could influence that URL after a user injected it into the setup flow, causing authenticated requests, redirects, or probes to reach another origin. The affected logic includes packages/@n8n/instance-ai/src/tools/workflows/credential-utils.ts and the extractServiceOrigin origin derivation. This issue is fixed in versions 2.37.7 and 2.38.2.

CVSS 5.9 · Medium · EPSS 0.4% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • n8n

    Versions
    • < 2.37.7: Affected
    • >= 2.38.0, < 2.38.2: Affected

    No fix published

  • n8n npm

    Affected ranges
    • SEMVER: ≥ 2.38.0, < 2.38.2

    Update to 2.38.2

  • n8n npm

    Affected ranges
    • SEMVER: < 2.37.7

    Update to 2.37.7

Original sources

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