# CVE-2026-86074

## Summary

- **CVE ID:** CVE-2026-86074
- **Severity:** MEDIUM
- **CVSS Score:** 5.9 (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:L/SI:L/SA:N)
- **CWE:** CWE-918
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 9, 2026

## Description

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.

## Affected Products

- n8n-io — n8n (< 2.37.7)
- n8n-io — n8n (>= 2.38.0, < 2.38.2)

## References

- [CNA](https://github.com/n8n-io/n8n/security/advisories/GHSA-q5wm-mgqx-fv2f)
- [CNA](https://github.com/n8n-io/n8n/releases/tag/n8n@2.37.7)
- [CNA](https://github.com/n8n-io/n8n/releases/tag/n8n@2.38.2)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.36%
- **EPSS Percentile:** 29.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._