ETK-2026-3615Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-3615",
  "cve_id": null,
  "display_id": "ETK-2026-3615",
  "ghsa_id": "GHSA-2c27-4x43-jrm6",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Cross-provider account confusion in HedgeDoc authentication",
  "summary": "HedgeDoc through 1.12.0 can associate an external-login identity with the wrong local account when multiple identity providers are enabled. An attacker who can obtain a matching identifier at another trusted provider may be able to access another user's account.",
  "mitigation": "Upgrade HedgeDoc to 1.12.1. Review existing user records and populate the provider field for all external-login accounts; restrict to a single external provider until this is complete.",
  "vendor": null,
  "product": "hedgedoc",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 1.12.0"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "1.12.1"
      ],
      "package_name": "hedgedoc",
      "purl": null
    }
  ],
  "cwes": [
    287
  ],
  "cvss_score": 8.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "deterministic",
  "check": true,
  "check_confidence_basis": "differential",
  "exploit": false,
  "pipeline_minutes": 24.346496033333334,
  "t0_at": null,
  "signals": {
    "check": {
      "at": "2026-11-05T11:09:14.154267+00:00",
      "days": -0.1992000513773148,
      "is_lower_bound": true,
      "measured_at": "2026-11-05T15:56:05.092899+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-04T21:41:23+00:00",
      "days": -0.7602087813194445,
      "is_lower_bound": true,
      "measured_at": "2026-11-05T15:56:05.092899+00:00",
      "url": "https://github.com/hedgedoc/hedgedoc/security/advisories/GHSA-2c27-4x43-jrm6"
    }
  }
}