n8n-MCP: Cross-tenant access to workflow version backups in multi-tenant HTTP deployments

Date Jul 14, 2026

Type Vendor advisory

Signal High-risk advisory

Vendor / Product npm · n8n-mcp

CVE CVE-2026-54052

High-risk advisory CVE-2026-54052

Summary

n8n-MCP: Cross-tenant access to workflow version backups in multi-tenant HTTP deployments

Why it matters

GitHub has published a reviewed security advisory for n8n-mcp. Prioritize it with other application dependency updates.

Operator check

Check whether n8n-mcp is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.

Sources

GitHub Advisory GHSA-j6r7-6fhx-77wx NVD — CVE-2026-54052 Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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