Improper Authorization

n8n-mcp is vulnerable to Improper Authorization. The vulnerability is due to insufficient tenant isolation in multi-tenant HTTP mode, which allows an authenticated tenant to access locally stored workflow version backups outside of its assigned tenant scope...

CVE-2026-55608

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 ENABLEMULTITENANT=true could allow an authenticated tenant to access default-scope workflowversions backups instead of being confined to...

CVE-2026-55608

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 ENABLEMULTITENANT=true could allow an authenticated tenant to access default-scope workflowversions backups instead of being confined to...

CVE-2026-55608 n8n-MCP: Incorrect authorization can expose default-scope workflow version backups in multi-tenant HTTP mode

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 ENABLEMULTITENANT=true could allow an authenticated tenant to access default-scope workflowversions backups instead of being confined to...

CVE-2026-55608

n8n-mcp prior to 2.57.4 is affected. In multi-tenant HTTP mode (ENABLE_MULTI_TENANT=true), an authenticated MCP HTTP tenant could access default-scope workflow_versions backups rather than its own tenant scope, potentially reading or deleting backups from prior single-tenant deployments or migrat...

CVE-2026-55608 n8n-MCP: Incorrect authorization can expose default-scope workflow version backups in multi-tenant HTTP mode

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 ENABLEMULTITENANT=true could allow an authenticated tenant to access default-scope workflowversions backups instead of being confined to...

CVE-2026-54052

n8n-MCP (HTTP mode with multi-tenancy enabled via ENABLE_MULTI_TENANT=true) is affected prior to version 2.56.1. An authenticated tenant could read and delete other tenants’ workflow version backups, including full node definitions, credential references, and authorization headers, due to backups...

CVE-2026-54052 n8n-MCP: Cross-tenant access to workflow version backups in multi-tenant HTTP deployments

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 ENABLEMULTITENANT=true, n8n-mcp's local workflow version history backups were not isolated per tenant, allowing an...

PT-2026-60387

This update for govulncheck-vulndb fixes the following issues: - Update to version 0.0.20260723T184607 2026-07-23T18:46:07Z jscPED-11136. Go CVE Numbering Authority IDs added or updated with aliases: GO-2026-4730 CVE-2026-33022 GHSA-cv4x-93xx-wgfj GO-2026-4761 CVE-2026-33211 GHSA-j5q5-j9gm-2w5c...

n8n-MCP: Incorrect authorization can expose default-scope workflow version backups in multi-tenant HTTP mode

Summary In multi-tenant HTTP mode ENABLEMULTITENANT=true, an authenticated tenant could, under certain conditions, reach n8n-mcp's local default-scope workflowversions backups instead of being confined to its own tenant scope. This affects n8n-mcp's own local workflow-version storage, not a norma...

GHSA-2CF7-HPWF-47H9 n8n-MCP: Incorrect authorization can expose default-scope workflow version backups in multi-tenant HTTP mode

Summary In multi-tenant HTTP mode ENABLEMULTITENANT=true, an authenticated tenant could, under certain conditions, reach n8n-mcp's local default-scope workflowversions backups instead of being confined to its own tenant scope. This affects n8n-mcp's own local workflow-version storage, not a norma...

NPM: n8n-MCP: Incorrect authorization can expose default-scope workflow version backups in multi-tenant HTTP mode

NPM: n8n-MCP: Incorrect authorization can expose default-scope workflow version backups in multi-tenant HTTP mode vulnerability discovered by ? in WordPress Npm n8n-mcp versions = 2.57.3...

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

Impact In multi-tenant HTTP deployments — where a single n8n-mcp server serves several tenants — the locally stored workflow version history the automatic backups taken before workflow updates was not isolated per tenant. An authenticated tenant could read workflow version snapshots belonging to...

GHSA-J6R7-6FHX-77WX n8n-MCP: Cross-tenant access to workflow version backups in multi-tenant HTTP deployments

Impact In multi-tenant HTTP deployments — where a single n8n-mcp server serves several tenants — the locally stored workflow version history the automatic backups taken before workflow updates was not isolated per tenant. An authenticated tenant could read workflow version snapshots belonging to...

Missing Authorization

Overview n8n-mcp is an Integration between n8n workflow automation and Model Context Protocol MCP Affected versions of this package are vulnerable to Missing Authorization in the workflow version history process in multi-tenant HTTP deployments due to improper isolation of stored backups between...

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

NPM: n8n-MCP: Cross-tenant access to workflow version backups in multi-tenant HTTP deployments vulnerability discovered by ? in WordPress Npm n8n-mcp versions = 2.56.0...

PYSEC-2026-3403 vLLM: GGUF dequantize kernel int truncation exposes uninitialized GPU memory in multi-tenant serving

Summary Integer truncation of tensor dimensions in vLLM's GGUF dequantize kernels csrc/quantization/gguf/ggufkernel.cu causes partial tensor processing. The output tensor is allocated at full size via torch::empty uninitialized memory, but the dequantize CUDA kernel processes only a truncated...

PYSEC-2026-2660 MLflow authenticated users can enumerate any registered model versions due to lack of per-model permissions checks

In mlflow/mlflow versions up to 3.9.0, the SearchModelVersions REST API endpoint and the mlflowSearchModelVersions GraphQL query lack proper per-model authorization checks when basic authentication is enabled. This allows any authenticated user to enumerate all model versions across all registere...

PYSEC-2026-2855 OpenViking contains a missing authorization vulnerability in the task polling endpoints

OpenViking versions prior to 0.3.3 contain a missing authorization vulnerability in the task polling endpoints that allows unauthorized attackers to enumerate or retrieve background task metadata created by other users. Attackers can access the /api/v1/tasks and /api/v1/tasks/taskid routes withou...

PYSEC-2026-2656 Arbitrary file write via tar traversal in mlflow

A vulnerability in MLflow's pyfunc extraction process allows for arbitrary file writes due to improper handling of tar archive entries. Specifically, the use of tarfile.extractall without path validation enables crafted tar.gz files containing .. or absolute paths to escape the intended extractio...