CVEvulnerability

CVE-2026-55608

5.4 MEDIUM Published 2026-07-15 Modified 2026-10-24 Official page ↗
Status
Analyzed
Published
2026-07-15
Last modified
2026-10-24
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.2 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS 3.1 ([email protected])
5.4 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-200, CWE-863

Description

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.57.4, multi-tenant HTTP mode with ENABLE_MULTI_TENANT=true could allow an authenticated tenant to access default-scope workflow_versions backups instead of being confined to the tenant scope, exposing or deleting workflow-version backups from prior single-tenant deployments or migrations. This issue is fixed in version 2.57.4.

Affected configurations

• n8n-mcp n8n-mcp (< 2.57.4)

Related

Weakness · CWE (2)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
  • CWE-863 Incorrect Authorization weakness

References