ToolHive: containerized MCP servers can reach host services via host.docker.internal, enabling lateral movement
High-risk advisory
CVE-2026-58197
Summary
ToolHive: containerized MCP servers can reach host services via host.docker.internal, enabling lateral movement
Why it matters
GitHub has published a reviewed security advisory for github.com/stacklok/toolhive. Prioritize it with other application dependency updates.
Operator check
Check whether github.com/stacklok/toolhive is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.