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CVE-2026-55608

5.4 medium SSVC exploitation: none Analyzed
NVD · CVE.org

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.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 5.4 · n8n-mcpNVD modified 2026-10-24 21:10

Affected (CPE criteria) 1

  • cpe:2.3:a:n8n-mcp:n8n-mcp:*:*:*:*:*:*:*:*

References 3