Medium · CVSS 6.3CVE-2026-59254

n8n - External Secrets Disclosure via Workflow Node ExpressionsCVE-2026-59254

Answer in brief

CVE-2026-59254 records a Medium severity (CVSS 6.3) vulnerability in n8n - External Secrets Disclosure via Workflow Node Expressions. The current sources do not mark it as known exploited. The current feed maps n8n/n8n (generic), n8n/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 Jul 15, 2026Updated Oct 29, 2026Source checked Oct 29, 2026First seen by HOL Jul 15, 2026Material review Oct 29, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 6.3
Exploitation: Not marked as known exploited
Affected software: 2 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/n8n (generic), n8n/n8n (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
n8n/n8ngeneric	>=2.28.0 <2.28.1	2.28.1
n8n/n8ngeneric	>=0 <2.27.4	2.27.4

Recommended response

Check inventory. Check lockfiles and deployed manifests for n8n/n8n, n8n/n8n.
Review the reported fix. Update n8n/n8n to 2.28.1; n8n/n8n to 2.27.4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Jul 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 29, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jul 15, 2026

Sources and claim methodology

Upstream source description

n8n before 2.28.1 contains an information disclosure vulnerability where external secrets are incorrectly resolved in workflow node expressions outside credentials scope. Authenticated project editors can read plaintext external secret values by referencing them in node expressions without requiring explicit secrets access permissions.

Quoted source text, attributed separately from HOL analysis.