Answer in brief
CVE-2026-59207 records a High severity (CVSS 7.1) vulnerability in n8n: "Allowed HTTP Request Domains" Restriction Bypass via AI Agents MCP Connector. The current sources do not mark it as known exploited. The current feed maps 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.
CVSS is 7.1. 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.
The current feed maps n8n-io/n8n (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:a:n8n:n8n:2.28.0:*:*:*:*:node.js:*:* | Not reported | Not reported |
| cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| n8n-io/n8ngeneric | >=2.28.0 <2.28.1 || <2.27.4 | 2.28.1, 2.27.4 |
Published upstream
Jul 9, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 25, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 9, 2026
n8n is an open source workflow automation platform. Prior to 2.27.4 and 2.28.1, the AI Agents feature did not enforce the Allowed HTTP Request Domains restriction configured on credentials when an MCP tool was pointed at an arbitrary URL, allowing a member-level user with use-only access to a shared credential to send its secret to an external server they control. This issue is fixed in versions 2.27.4 and 2.28.1.
Quoted source text, attributed separately from HOL analysis.