CVE-2026-108358

{
  "etk_id": "ETK-2026-2472",
  "cve_id": "CVE-2026-108358",
  "display_id": "CVE-2026-108358",
  "ghsa_id": "GHSA-3x94-m842-937c",
  "euvd_id": "EUVD-2026-108265",
  "status": "published",
  "anchor_state": "anchored",
  "title": "XML entity scanner bypass in PhpSpreadsheet",
  "summary": "PhpSpreadsheet versions before 1.30.7, 2.1.19, 2.4.8, 3.10.8, and 5.10.0 are affected when processing attacker-controlled XLSX files. An attacker may cause entity-expansion denial of service; local file access or server-side request forgery may also be possible on PHP before 8.0 or when LIBXML_NOENT is enabled.",
  "mitigation": "Upgrade PhpSpreadsheet to 1.30.7, 2.1.19, 2.4.8, 3.10.8, or 5.10.0, as appropriate for the deployed release line. Avoid processing untrusted XLSX files until upgraded, and do not enable LIBXML_NOENT.",
  "vendor": "PHPOffice",
  "product": "PhpSpreadsheet",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 4.0.0, <= 5.9.0"
      ],
      "ecosystem": "composer",
      "fixed_versions": [
        "5.10.0"
      ],
      "package_name": "phpoffice/phpspreadsheet",
      "purl": "pkg:composer/phpoffice/phpspreadsheet"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 3.3.0, <= 3.10.7"
      ],
      "ecosystem": "composer",
      "fixed_versions": [
        "3.10.8"
      ],
      "package_name": "phpoffice/phpspreadsheet",
      "purl": "pkg:composer/phpoffice/phpspreadsheet"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.2.0, <= 2.4.7"
      ],
      "ecosystem": "composer",
      "fixed_versions": [
        "2.4.8"
      ],
      "package_name": "phpoffice/phpspreadsheet",
      "purl": "pkg:composer/phpoffice/phpspreadsheet"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        ">= 2.0.0, <= 2.1.18"
      ],
      "ecosystem": "composer",
      "fixed_versions": [
        "2.1.19"
      ],
      "package_name": "phpoffice/phpspreadsheet",
      "purl": "pkg:composer/phpoffice/phpspreadsheet"
    },
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 1.30.6"
      ],
      "ecosystem": "composer",
      "fixed_versions": [
        "1.30.7"
      ],
      "package_name": "phpoffice/phpspreadsheet",
      "purl": "pkg:composer/phpoffice/phpspreadsheet"
    }
  ],
  "cwes": [
    611
  ],
  "cvss_score": 8.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:L/SI:N/SA:N",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 14.001090483333334,
  "t0_at": "2026-10-22T17:29:56.449000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-10-22T17:29:56.449000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-10-22T17:29:56.449000+00:00",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-108358"
    }
  }
}