Nixpkgs security tracker
8.8 HIGH
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Adjacent (A)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): Required (R)
- Scope (S): Changed (C)
- Confidentiality (C): High (H)
- Integrity (I): High (H)
- Availability (A): High (H)
- Modified Attack Vector (MAV): Adjacent (A)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): Required (R)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Changed (C)
- Modified Integrity (MI): High (H)
- Modified Availability (MA): High (H)
by @LeSuisse Activity log
- Created suggestion
- @LeSuisse accepted
- @LeSuisse published on GitHub
ToolHive: containerized MCP servers can reach host services via host.docker.internal, enabling lateral movement
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.
References
-
https://github.com/stacklok/toolhive/security/advisories/GHSA-qg2g-g9w3-m5h8 x_refsource_CONFIRMexploit
-
https://github.com/stacklok/toolhive-studio/pull/2469 x_refsource_MISC
-
https://github.com/stacklok/toolhive/pull/5583 x_refsource_MISC
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https://github.com/stacklok/toolhive-studio/releases/tag/v0.38.0 x_refsource_MISC
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https://github.com/stacklok/toolhive/releases/tag/v0.30.1 x_refsource_MISC
Affected products
- ==< 0.30.1
- ==< 0.38.0
Package maintainers
-
@thrix Miroslav Vadkerti <mvadkert@redhat.com>