CVE-2026-115731

{
  "etk_id": "ETK-2026-3407",
  "cve_id": "CVE-2026-115731",
  "display_id": "CVE-2026-115731",
  "ghsa_id": null,
  "euvd_id": "EUVD-2026-116495",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Code execution through report deserialization in Puppet Enterprise",
  "summary": "Affected Puppet Enterprise releases contain unsafe report-data deserialization in Puppet Server. An attacker with a CA-signed agent certificate can execute code under the Puppet Server service account; permissive certificate autosigning may let an unauthenticated network attacker obtain the required certificate.",
  "mitigation": "Upgrade Puppet Enterprise to 2023.8.13, 2025.12.1, or 2026.0.1, as appropriate for the deployed release line. Disable or tightly restrict certificate autosigning until all systems are updated.",
  "vendor": "Perforce",
  "product": "Puppet Enterprise",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2023.8.0, < 2023.8.13",
        ">= 2025.0.0, < 2025.12.1",
        ">= 2026.0.0, < 2026.0.1"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "2023.8.13",
        "2025.12.1",
        "2026.0.1"
      ],
      "package_name": "Puppet Enterprise",
      "purl": null
    }
  ],
  "cwes": [
    502
  ],
  "cvss_score": 9.4,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
  "epss_score": 0.0037,
  "epss_percentile": 0.3055,
  "epss_asof": "2026-11-06",
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 82.92182243333333,
  "t0_at": "2026-11-03T20:40:10.100000+00:00",
  "signals": {
    "check": {
      "at": "2026-11-05T23:31:59.768372+00:00",
      "days": 2.1193248654166665,
      "is_lower_bound": false,
      "measured_at": "2026-11-03T20:40:10.100000+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-11-03T20:40:10.100000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-03T20:40:10.100000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-115731"
    }
  }
}