CVE-2026-103956

{
  "etk_id": "ETK-2026-370",
  "cve_id": "CVE-2026-103956",
  "display_id": "CVE-2026-103956",
  "ghsa_id": "GHSA-vgmj-998f-r8mp",
  "euvd_id": "EUVD-2026-91770",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Missing authentication in AWS Loom control plane",
  "summary": "AWS Loom versions before 1.6.1 can expose the agent control plane without authentication when no identity provider is configured. A remote caller could gain super-administrator access and alter managed agent configuration or access stored integration credentials.",
  "mitigation": "Upgrade Loom to version 1.6.1 or later. Configure an identity provider where possible to reduce exposure until the upgrade is complete.",
  "vendor": "AWS",
  "product": "loom",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<1.6.1"
      ],
      "ecosystem": "loom for aws",
      "fixed_versions": [
        "1.6.1"
      ],
      "package_name": null,
      "purl": null
    }
  ],
  "cwes": [
    306
  ],
  "cvss_score": 10,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
  "epss_score": 0.0047,
  "epss_percentile": 0.3922,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": true,
  "pipeline_minutes": 15.674519216666667,
  "t0_at": "2026-10-02T19:06:06.883000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-02T19:59:58.994599+00:00",
      "days": 0.0374086990625,
      "is_lower_bound": false,
      "measured_at": "2026-10-02T19:06:06.883000+00:00",
      "url": null
    },
    "exploit": {
      "at": "2026-10-02T19:59:58.994599+00:00",
      "days": 0.0374086990625,
      "is_lower_bound": false,
      "measured_at": "2026-10-02T19:06:06.883000+00:00",
      "url": null
    },
    "public_poc": {
      "at": "2026-10-03T21:54:10+00:00",
      "days": 1.1167027430555556,
      "is_lower_bound": false,
      "measured_at": "2026-10-02T19:06:06.883000+00:00",
      "url": "https://github.com/abraxas/cve-2026-103956-loom-unauth"
    },
    "trigger_signal": {
      "at": "2026-10-02T19:06:06.883000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-02T19:06:06.883000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-103956"
    }
  }
}