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ToolHive: containerized MCP servers can reach host services via host.docker.internal, enabling lateral movement in github.com/stacklok/toolhive

Type: advisorySource: OSV1 source record

ToolHive: containerized MCP servers can reach host services via host.docker.internal, enabling lateral movement in github.com/stacklok/toolhive

Announced Source revision 1
Original source ↗

GO-2026-6526

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:GO-2026-6526

github.com/stacklok/toolhive

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
0.30.1

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "SEMVER",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.30.1"
          }
        ]
      }
    ],
    "package": {
      "name": "github.com/stacklok/toolhive",
      "purl": "pkg:golang/github.com/stacklok/toolhive",
      "ecosystem": "Go"
    },
    "database_specific": {
      "source": "https://vuln.go.dev/ID/GO-2026-6526.json"
    },
    "ecosystem_specific": {}
  }
]
Related CVEs
CVE-2026-58197

Source reference: /aliases

Publisher severity

No explicit severity was provided.

Linked CVE context

These ratings describe the referenced vulnerabilities and products. They are not a severity rating for every application using this dependency.

CVE-2026-58197 · High

github.com/stacklok/toolhive

Event
#23366 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement