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TI-2026-20239 Aliases CVE-2026-25055GHSA-m82q-59gv-mcr9

n8n Arbitrary File Write on Remote Systems via SSH Node

Priority LOW 35CWE-22Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub.

Summary

n8n is an open source workflow automation platform. Prior to versions 1.123.12 and 2.4.0, when workflows process uploaded files and transfer them to remote servers via the SSH node without validating their metadata the vulnerability can lead to files being written to unintended locations on those remote systems potentially leading to remote code execution on those systems. As a prerequisites an unauthenticated attacker needs knowledge of such workflows existing and the endpoints for file uploads need to be unauthenticated. This issue has been patched in versions 1.123.12 and 2.4.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01861 79th percentileScored 2026-11-07
Fix Fixed n8n (n8n-io): 1.123.12, 2.4.0n8n (npm): 2.4.0, 1.123.12

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 1.123.12; before 2.4.01.123.12, 2.4.0Patch availableCNA
—n8n (npm)2.0.0 to before 2.4.02.4.0Patch availableGHSA-m82q-59gv-mcr9
—n8n (npm)before 1.123.121.123.12Patch availableGHSA-m82q-59gv-mcr9
  • n8n Vendorn8n Affected before 1.123.12; before 2.4.0 Fixed in 1.123.12, 2.4.0 Patch available CNA
  • n8n (npm) Vendor— Affected 2.0.0 to before 2.4.0 Fixed in 2.4.0 Patch available GHSA-m82q-59gv-mcr9
  • n8n (npm) Vendor— Affected before 1.123.12 Fixed in 1.123.12 Patch available GHSA-m82q-59gv-mcr9

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*before 1.123.12; 2.0.0 to before 2.4.0fVulnerablen8n
  • cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* Versions before 1.123.12; 2.0.0 to before 2.4.0f Vulnerable ·n8n

Remediation

  • Fix · CNA n8n (n8n-io) Fixed in 1.123.12, 2.4.0
  • Fix · GHSA-m82q-59gv-mcr9 n8n (npm) Fixed in 2.4.0 Advisory →
  • Fix · GHSA-m82q-59gv-mcr9 n8n (npm) Fixed in 1.123.12 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-25055
  2. 2026-10-03 Alias added: GHSA-m82q-59gv-mcr9

References

Patch 1

Advisory 1

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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences