CVE-2026-126390

n8n before 1.123.89 NocoDB Node API Token Leak via Attachment Download

Published Nov 13, 2026 CVSS 4.0 · 6.3 Medium EPSS n/a KEV · Not listed
Description
n8n before 1.123.89 contains a credential leakage vulnerability in the NocoDB node that sends the configured NocoDB API token to attacker-chosen hosts when downloading attachments. Attackers with write access to a NocoDB attachment cell can insert a URL to their host, capturing the API token when the workflow executes with Download Attachments enabled.

Analysis

No analysis available yet

Remediation

No remediation available yet

Tracking

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Advisories

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History
Type Values Removed Values Added
Description n8n before 1.123.89 contains a credential leakage vulnerability in the NocoDB node that sends the configured NocoDB API token to attacker-chosen hosts when downloading attachments. Attackers with write access to a NocoDB attachment cell can insert a URL to their host, capturing the API token when the workflow executes with Download Attachments enabled.
Title n8n before 1.123.89 NocoDB Node API Token Leak via Attachment Download
First Time appeared N8n
N8n n8n
Weaknesses CWE-522
CPEs cpe:2.3:a:n8n:n8n:*:*:*:*:*:*:*:*
Vendors & Products N8n
N8n n8n
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses
  • CWE-522

    Insufficiently Protected Credentials

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 13, 2026, 9:35 AM
Reserved
Nov 10, 2026, 9:30 PM
Status
Deferred
Published
Nov 13, 2026, 10:17 AM
Modified
Nov 13, 2026, 10:17 AM