CVE-2026-73802

{
  "etk_id": "ETK-2026-386",
  "cve_id": "CVE-2026-73802",
  "display_id": "CVE-2026-73802",
  "ghsa_id": "GHSA-x4q3-gcj3-m6cf",
  "euvd_id": "EUVD-2026-101107",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Workflow container-option isolation bypass in Gitea Runner",
  "summary": "Affected Docker-backed Gitea Runner installations allow workflow-defined job container settings to bypass intended container isolation. A user able to run a workflow may gain root-level access to the runner host when untrusted workflows are accepted.",
  "mitigation": "Upgrade gitea.com/gitea/runner to 1.0.9-0.20260731160927-34bfa1915022 or later. Until upgraded, allow workflows only from trusted authors and block job-level container option overrides.",
  "vendor": "go",
  "product": "go:gitea.com/gitea/runner",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "< 1.0.9-0.20260731160927-34bfa1915022"
      ],
      "ecosystem": "go",
      "fixed_versions": [
        "1.0.9-0.20260731160927-34bfa1915022"
      ],
      "package_name": "gitea.com/gitea/runner",
      "purl": "pkg:golang/gitea.com/gitea/runner"
    }
  ],
  "cwes": null,
  "cvss_score": 9.9,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
  "epss_score": 0.0047,
  "epss_percentile": 0.3952,
  "epss_asof": "2026-10-20",
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 73.67272991666667,
  "t0_at": "2026-10-14T14:37:55.141000+00:00",
  "signals": {
    "check": {
      "at": "2026-10-15T16:32:20.486250+00:00",
      "days": 1.0794600144675925,
      "is_lower_bound": false,
      "measured_at": "2026-10-14T14:37:55.141000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-02T23:18:12+00:00",
      "days": -11.638693761574075,
      "is_lower_bound": false,
      "measured_at": "2026-10-14T14:37:55.141000+00:00",
      "url": "https://github.com/advisories/GHSA-x4q3-gcj3-m6cf"
    }
  }
}