CRITICAL🇵🇱 Wersja polska

CVE-2026-54052

CVSS 9.9v3.1pub. 2026-07-15upd. 2026-07-18

n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.56.1, in HTTP mode with multi-tenancy enabled through ENABLE_MULTI_TENANT=true, n8n-mcp's local workflow version history backups were not isolated per tenant, allowing an authenticated tenant to read workflow version snapshots belonging to other tenants and delete or destroy other tenants' stored backups, including full node definitions, credential references, and authorization headers. This issue is fixed in version 2.56.1.

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:L

  • N8n Mcp

    APP
    N8N-Mcp
    < 2.56.1
🔵
CHECK WITH VENDOR
No clear patch data available. Check vendor references.
CWE
References

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