CVE-2026-55608
CVE-2026-55608 · n8n-MCP: Incorrect authorization can expose default-scope workflow version backups in multi-tenant HTTP mode
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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.
CVSS 4.2 · Moyenne · EPSS 0,3% · Correctif disponible
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Pile logicielle: node