{"data":{"id":"65976c52-74b0-4f3d-9101-548e9cf88afa","title":"GHSA-qg2g-g9w3-m5h8: ToolHive: containerized MCP servers can reach host services via host.docker.internal, enabling lateral movement","summary":"A containerized MCP server running under the default `network` permission profile (`insecure_allow_all: true`) can reach host-local services through `host.docker.internal`, including the ToolHive API, other ToolHive-managed MCP server proxies, and other localhost services. Because the ToolHive API and MCP proxy endpoints are unauthenticated, a compromised or malicious MCP server can move laterally without a container escape. The source rates the severity High.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://github.com/advisories/GHSA-qg2g-g9w3-m5h8","publishedAt":"2026-09-18T17:16:02.000Z","cveId":"CVE-2026-58197","cweIds":null,"cvssScore":null,"cvssSeverity":"high","severity":"high","attackType":["other"],"issueType":"vulnerability","affectedPackages":["github.com/stacklok/toolhive@< 0.30.1 (fixed: 0.30.1)"],"affectedPackageNames":["github.com/stacklok/toolhive"],"affectedPackageRefs":["go:github.com/stacklok/toolhive"],"affectedVendors":[],"affectedVendorsRaw":["ToolHive","MCP servers"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0.00372,"epssCheckedAt":"2026-11-04T06:10:15.563Z","kevDateAdded":null,"advisoryAliases":["GHSA-qg2g-g9w3-m5h8"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":true,"disclosureDate":"2026-09-18T17:16:02.000Z","fixReleasedAt":"2026-06-23T23:38:34.000Z","daysToFix":-87,"fixCheckedAt":"2026-10-29T21:30:27.379Z","capecIds":null,"crossRefCount":0,"attackSophistication":"moderate","impactType":["confidentiality","integrity","availability"],"aiComponentTargeted":"plugin","llmSpecific":false,"classifierConfidence":0.85,"researchCategory":null,"atlasIds":null,"fixes":[{"ecosystem":"go","name":"github.com/stacklok/toolhive","fixedVersion":"0.30.1","matchedVersion":"v0.30.1","fixReleasedAt":"2026-06-23T23:38:34.000Z","daysToFix":-87,"match":"ecosystem","source":"registry","status":"found","checkedAt":"2026-10-29T21:30:27.234Z"}]}}