PT-2026-56816 · N8N+1 · N8N

Published 2026-07-09 · Updated 2026-07-09 · CVE-2026-59207

NVD

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

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.

Fix

Protection Mechanism Failure

Weakness Enumeration

CWE-693

Related Identifiers

CVE-2026-59207

Affected Products

N8N

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-59207 · Security Note
• https://github.com/n8n-io/n8n/security/advisories/GHSA-h44j-f5r5-ph73 · Vendor Advisory
• https://github.com/n8n-io/n8n/releases/tag/n8n%402.28.1 · Note
• https://github.com/n8n-io/n8n/releases/tag/n8n%402.27.4 · Note