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TI-2026-58889 Aliases CVE-2026-86084GHSA-pf83-w3f9-8m37

n8n: Disabled OIDC SSO Endpoints Remain Active and Issue Valid Sessions

Priority LOW 27CWE-288Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-288.

Summary

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, the public OIDC login and callback endpoints completed authentication even when OIDC was not the enabled active authentication method. An Enterprise administrator who had configured and later disabled an identity provider still exposed a working route that could issue valid sessions. The affected logic is packages/cli/src/modules/sso-oidc/oidc.service.ee.ts, including generateLoginUrl and the callback flow that lacked assertOidcLoginEnabled. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00461 40th percentileScored 2026-11-07
Fix Fixed n8n (n8n-io): 2.38.2, 2.37.7, 1.123.76n8n (npm): 1.123.76, 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
n8nn8n2.38.0 to before 2.38.2; 2.0.0 to before 2.37.7; before 1.123.762.38.2, 2.37.7, 1.123.76Patch availableCNA
—n8n (npm)before 1.123.761.123.76Patch availableGHSA-pf83-w3f9-8m37
—n8n (npm)2.38.0 to before 2.38.22.38.2Patch availableGHSA-pf83-w3f9-8m37
—n8n (npm)2.0.0 to before 2.37.72.37.7Patch availableGHSA-pf83-w3f9-8m37
  • n8n Vendorn8n Affected 2.38.0 to before 2.38.2; 2.0.0 to before 2.37.7; before 1.123.76 Fixed in 2.38.2, 2.37.7, 1.123.76 Patch available CNA
  • n8n (npm) Vendor— Affected before 1.123.76 Fixed in 1.123.76 Patch available GHSA-pf83-w3f9-8m37
  • n8n (npm) Vendor— Affected 2.38.0 to before 2.38.2 Fixed in 2.38.2 Patch available GHSA-pf83-w3f9-8m37
  • n8n (npm) Vendor— Affected 2.0.0 to before 2.37.7 Fixed in 2.37.7 Patch available GHSA-pf83-w3f9-8m37

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*before 1.123.76; 2.0.0 to before 2.37.7; 2.38.0 to before 2.38.2Vulnerablen8n
  • cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* Versions before 1.123.76; 2.0.0 to before 2.37.7; 2.38.0 to before 2.38.2 Vulnerable ·n8n

Remediation

  • Fix · CNA n8n (n8n-io) Fixed in 2.38.2, 2.37.7, 1.123.76
  • Fix · GHSA-pf83-w3f9-8m37 n8n (npm) Fixed in 1.123.76 Advisory →
  • Fix · GHSA-pf83-w3f9-8m37 n8n (npm) Fixed in 2.38.2 Advisory →
  • Fix · GHSA-pf83-w3f9-8m37 n8n (npm) Fixed in 2.37.7 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-86084
  2. 2026-10-03 Alias added: GHSA-pf83-w3f9-8m37

References

Advisory 2

Other 4

  • 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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