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TI-2026-58879 Aliases CVE-2026-86074GHSA-q5wm-mgqx-fv2f

n8n: Instance AI Credential Setup Accepts Unvalidated Probe URL from Fetched Content

Priority LOW 27CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Active
Attack complexity
Low
Attack requirements
Present
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-918 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00376 31st percentileScored 2026-11-07
Fix Fixed n8n (n8n-io): 2.37.7, 2.38.2n8n (npm): 2.38.2, 2.37.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
n8nn8nbefore 2.37.7; 2.38.0 to before 2.38.22.37.7, 2.38.2Patch availableCNA
—n8n (npm)2.38.0 to before 2.38.22.38.2Patch availableGHSA-q5wm-mgqx-fv2f
—n8n (npm)before 2.37.72.37.7Patch availableGHSA-q5wm-mgqx-fv2f
  • n8n Vendorn8n Affected before 2.37.7; 2.38.0 to before 2.38.2 Fixed in 2.37.7, 2.38.2 Patch available CNA
  • n8n (npm) Vendor— Affected 2.38.0 to before 2.38.2 Fixed in 2.38.2 Patch available GHSA-q5wm-mgqx-fv2f
  • n8n (npm) Vendor— Affected before 2.37.7 Fixed in 2.37.7 Patch available GHSA-q5wm-mgqx-fv2f

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*before 2.37.7; 2.38.0 to before 2.38.2Vulnerablen8n
  • cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* Versions before 2.37.7; 2.38.0 to before 2.38.2 Vulnerable ·n8n

Remediation

  • Fix · CNA n8n (n8n-io) Fixed in 2.37.7, 2.38.2
  • Fix · GHSA-q5wm-mgqx-fv2f n8n (npm) Fixed in 2.38.2 Advisory →
  • Fix · GHSA-q5wm-mgqx-fv2f n8n (npm) Fixed in 2.37.7 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-86074
  2. 2026-10-03 Alias added: GHSA-q5wm-mgqx-fv2f

References

Advisory 2

Other 3

  • TI-2025-42131 n8n Vulnerable to Remote Code Execution via Expression Injection KEVCVSS 3.1CRITICAL 10.0
  • TI-2026-17560 n8n Vulnerable to Unauthenticated File Access via Improper Webhook Request Handling CVSS 3.1CRITICAL 10.0
  • TI-2026-01167 Authenticated users can bypass the Expression sandbox mechanism to achieve full remote… CVSS 3.1CRITICAL 9.9
  • TI-2026-00644 Sandbox escape in n8n Python task runner allows for arbitrary code execution on the underlying host. CVSS 3.1CRITICAL 9.9
  • TI-2025-35293 An arbitrary file upload vulnerability in the Chat Trigger component of N8N v1.95.3… CVSS 3.1HIGH 8.8
  • TI-2023-12275 The n8n package 0.218.0 for Node.js allows Escalation of Privileges. CVSS 3.1HIGH 8.8
See all 178 →

Sources

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