CVE-2026-104970

{
  "etk_id": "ETK-2026-665",
  "cve_id": "CVE-2026-104970",
  "display_id": "CVE-2026-104970",
  "ghsa_id": "GHSA-p548-28jp-wr4p",
  "euvd_id": "EUVD-2026-92492",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Concurrent first-admin signup race in makeplane plane",
  "summary": "Plane versions from 0.13 through versions before 1.4.0 mishandle simultaneous initial administrator signup requests. An unauthenticated attacker who races requests while an instance has no administrator may obtain instance-administrator access alongside the legitimate operator.",
  "mitigation": "Upgrade plane to version 1.4.0 or later. Until upgraded, restrict access to the initial administrator signup endpoint and complete first-time setup without exposing it to untrusted users.",
  "vendor": "makeplane",
  "product": "plane",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 1.3.1"
      ],
      "ecosystem": "other",
      "fixed_versions": [
        "1.4.0"
      ],
      "package_name": "makeplane/plane",
      "purl": null
    }
  ],
  "cwes": [
    362
  ],
  "cvss_score": 8.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": 0.0027,
  "epss_percentile": 0.1727,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 84.4640482,
  "t0_at": "2026-10-05T16:58:55.970000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-05T19:39:10.163490+00:00",
      "days": 0.11127538761574074,
      "is_lower_bound": false,
      "measured_at": "2026-10-05T16:58:55.970000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-05T16:58:55.970000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-05T16:58:55.970000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-104970"
    }
  }
}