ToolHive: containerized MCP servers can reach host services via host.docker.internal, enabling lateral movement
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| stacklok | toolhive | affected |
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| stacklok | toolhive-studio | affected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
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| Stacklok | Toolhive |
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| Stacklok | Toolhive-studio |
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| Source | ID | Title |
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Github GHSA |
GHSA-qg2g-g9w3-m5h8 | ToolHive: containerized MCP servers can reach host services via host.docker.internal, enabling lateral movement |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.372% probability within 30 days)
| Type | Values Removed | Values Added |
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| First Time appeared |
Stacklok
Stacklok toolhive Stacklok toolhive-studio |
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| Vendors & Products |
Stacklok
Stacklok toolhive Stacklok toolhive-studio |
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| Metrics |
ssvc
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| Description | ToolHive is a utility designed to simplify the deployment and management of Model Context Protocol servers. Prior to ToolHive CLI 0.30.1 and ToolHive Studio 0.38.0, locally run MCP server containers use the default network permission profile without network isolation, permitting access to host.docker.internal while ToolHive API and MCP proxy endpoints are reachable without authentication. A malicious or compromised MCP server can use the Docker gateway to contact host-local services, other ToolHive-managed MCP proxies, or the ToolHive control plane without escaping the container. This access can expose data and logs, invoke sibling MCP tools, alter process or workload state, and disrupt services. ToolHive Studio additionally sends network_isolation as false and overrides the backend's secure isolation default. This issue is fixed in ToolHive CLI 0.30.1 and ToolHive Studio 0.38.0. | |
| Title | ToolHive: containerized MCP servers can reach host services via host.docker.internal, enabling lateral movement | |
| Weaknesses | CWE-284 CWE-306 |
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| References |
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| Metrics |
cvssV3_1
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