CVE-2026-106510

{
  "etk_id": "ETK-2026-947",
  "cve_id": "CVE-2026-106510",
  "display_id": "CVE-2026-106510",
  "ghsa_id": "GHSA-4488-j8vj-vqqv",
  "euvd_id": "EUVD-2026-94369",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Command injection in Backstage TechDocs builds",
  "summary": "Backstage deployments using affected TechDocs components can execute attacker-supplied operating-system commands on the documentation build host. Exploitation requires an authenticated user who is permitted to register a catalog entity that influences the TechDocs MkDocs configuration.",
  "mitigation": "Upgrade backstage to 1.50.5 or 1.54.6 and plugin-techdocs-node to 1.14.6 or 1.15.4, as applicable. Until upgrades are complete, use the external TechDocs builder, limit entity-registration permissions, and review existing MkDocs configuration for suspicious extension settings.",
  "vendor": "backstage",
  "product": "backstage",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 1.14.6"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "1.14.6"
      ],
      "package_name": "@backstage/plugin-techdocs-node",
      "purl": "pkg:npm/@backstage/plugin-techdocs-node"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 1.15.0, < 1.15.4"
      ],
      "ecosystem": "npm",
      "fixed_versions": [
        "1.15.4"
      ],
      "package_name": "@backstage/plugin-techdocs-node",
      "purl": "pkg:npm/@backstage/plugin-techdocs-node"
    }
  ],
  "cwes": [
    183
  ],
  "cvss_score": 7.7,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L",
  "epss_score": 0.0045,
  "epss_percentile": 0.3787,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 21.459416583333333,
  "t0_at": "2026-10-07T14:36:53.929000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-08T07:16:48.940393+00:00",
      "days": 0.6943867059375,
      "is_lower_bound": false,
      "measured_at": "2026-10-07T14:36:53.929000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-07T14:36:53.929000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-07T14:36:53.929000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-106510"
    }
  }
}