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Back to active CVEs
Medium · CVSS 6.3CVE-2026-126390

n8n before 1.123.89 NocoDB Node API Token Leak via Attachment DownloadCVE-2026-126390

Answer in brief

CVE-2026-126390 records a Medium severity (CVSS 6.3) vulnerability in n8n before 1.123.89 NocoDB Node API Token Leak via Attachment Download. The current sources do not mark it as known exploited. The current feed maps n8n-io/n8n (generic), n8n-io/n8n (generic), n8n-io/n8n (generic), n8n-io/n8n (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 13, 2026Updated Nov 13, 2026Source checked Nov 13, 2026First seen by HOL Nov 13, 2026Material review Nov 13, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.3
Exploitation
Not marked as known exploited
Affected software
4 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 6.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps n8n-io/n8n (generic), n8n-io/n8n (generic), n8n-io/n8n (generic), n8n-io/n8n (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
n8n-io/n8ngeneric>=0 <1.123.891.123.89
n8n-io/n8ngeneric>=2.46.0 <2.46.12.46.1
n8n-io/n8ngeneric>=2.0.0 <2.45.52.45.5
n8n-io/n8ngeneric>=3.0.0 <3.0.13.0.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for n8n-io/n8n, n8n-io/n8n, n8n-io/n8n.
  2. 2Review the reported fix. Update n8n-io/n8n to 1.123.89; n8n-io/n8n to 2.46.1; n8n-io/n8n to 2.45.5; n8n-io/n8n to 3.0.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 13, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 13, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • NocoDB before 2026.09.0 TLS Private Key Exposure via Data Source ReadAlso CWE-522

Record context

Vulnerability class
Secret Exfiltration
EPSS
Not reported
CWE IDs
CWE-522
Source
CVE List V5
Source checked
Nov 13, 2026
References
2 linked sources
Open source record