CVE-2026-108740

{
  "etk_id": "ETK-2026-1256",
  "cve_id": "CVE-2026-108740",
  "display_id": "CVE-2026-108740",
  "ghsa_id": "GHSA-4f43-5hgr-4m7r",
  "euvd_id": "EUVD-2026-96906",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Mass assignment privilege escalation in GoatCounter",
  "summary": "GoatCounter through version 2.7.0 is affected by a mass assignment flaw in its user preference handling. An authenticated user with read-only access may be able to alter protected account attributes and obtain administrative privileges.",
  "mitigation": "Update GoatCounter to a vendor release that addresses this issue when one is available. Until then, remove or closely limit untrusted read-only accounts and restrict access to the user preference endpoint at the network layer where feasible.",
  "vendor": "arp242",
  "product": "GoatCounter",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 0, <= 2.7.0"
      ],
      "ecosystem": null,
      "fixed_versions": [],
      "package_name": "GoatCounter",
      "purl": null
    }
  ],
  "cwes": null,
  "cvss_score": 8.3,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H",
  "epss_score": 0.0033,
  "epss_percentile": 0.245,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 19.905838383333332,
  "t0_at": "2026-10-11T12:19:44.911000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-11T12:19:44.911000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-11T12:19:44.911000+00:00",
      "url": "https://github.com/advisories/GHSA-4f43-5hgr-4m7r"
    }
  }
}