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TI-2026-58499 Aliases CVE-2026-85166GHSA-4qfv-x7mh-xjhv

n8n before 2.36.2 Credential Exfiltration via Workflow Tool Node

Priority LOW 32CWE-863Published · 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 · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

n8n before 2.35.4 and 2.36.x before 2.36.2 does not validate credential references in the inline workflow JSON of nodes that execute an inline sub-workflow (e.g., the Workflow Tool node). A shared-workflow editor, or any user creating/updating a workflow via the REST API, Public API, or MCP, can persist a node referencing a credential they do not own. When the workflow is later executed under an identity that holds the credential, the inline sub-workflow resolves the secret and can send it to an attacker-controlled endpoint, resulting in credential exfiltration.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00358 29th percentileScored 2026-11-07
Fix Fixed n8n (n8n-io): 2.36.2, 2.35.4

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
n8nn8n2.36.0 to before 2.36.22.36.2Patch availableCNA
n8nn8nbefore 2.35.42.35.4Patch availableCNA
  • n8n Vendorn8n Affected 2.36.0 to before 2.36.2 Fixed in 2.36.2 Patch available CNA
  • n8n Vendorn8n Affected before 2.35.4 Fixed in 2.35.4 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*before 2.35.4; 2.36.0 to before 2.36.2Vulnerablen8n
  • cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* Versions before 2.35.4; 2.36.0 to before 2.36.2 Vulnerable ·n8n

Remediation

  • Fix · CNA n8n (n8n-io) Fixed in 2.36.2
  • Fix · CNA n8n (n8n-io) Fixed in 2.35.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    n8n-io n8n 2.35.4, 2.36.2

    8 records Highest priority Priority MEDIUM 1 MEDIUM, 7 LOW

    Other records, highest priority first

    • TI-2026-58502 n8n before 1.123.73 Remote Code Execution via $fromAI Prototype LeakPriority MEDIUM 41
    • TI-2026-58501 n8n before 1.123.73 Remote Code Execution via Git NodePriority LOW 37
    • TI-2026-58498 n8n before 2.36.2 Expression Sandbox Bypass via SpreadElementPriority LOW 34
    Show all 8 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-85166
  2. 2026-10-03 Alias added: GHSA-4qfv-x7mh-xjhv
  3. 2026-10-29 Affected versions changed · CNA

References

Advisory 1

  • 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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