ETK-2026-3183Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-3183",
  "cve_id": null,
  "display_id": "ETK-2026-3183",
  "ghsa_id": "GHSA-g248-596f-9995",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Out-of-bounds write in OpenEXR channel-list handling",
  "summary": "OpenEXR before 3.3.15, 3.4.17, and 3.5.3 can incorrectly process auxiliary channel-list attributes in crafted EXR files. An attacker able to supply an EXR file for processing may cause an affected application to write beyond an allocated buffer, potentially crashing it; a separate reader path can return pixel values influenced by uninitialized memory. The application must read attacker-controlled EXR content.",
  "mitigation": "Upgrade OpenEXR to 3.3.15, 3.4.17, 3.5.3 or later.",
  "vendor": "c/c++",
  "product": "other:OpenEXR",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "3.3.0-3.3.14",
        "3.4.0-3.4.16",
        "3.5.0-3.5.2"
      ],
      "ecosystem": "c/c++",
      "fixed_versions": [
        "3.3.15",
        "3.4.17",
        "3.5.3"
      ],
      "package_name": "OpenEXR",
      "purl": null
    }
  ],
  "cwes": [
    787
  ],
  "cvss_score": 7,
  "cvss_src": "ethiack_provisional",
  "cvss_vector": null,
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": true,
  "check_confidence_basis": "assessed",
  "exploit": false,
  "pipeline_minutes": 18.5192818,
  "t0_at": null,
  "signals": {
    "check": {
      "at": "2026-10-31T16:22:50.577054+00:00",
      "days": -0.23535562625,
      "is_lower_bound": true,
      "measured_at": "2026-10-31T22:01:45.334288+00:00",
      "url": null
    },
    "trigger_signal": {
      "at": "2026-10-31T14:37:40+00:00",
      "days": -0.30839471252314815,
      "is_lower_bound": true,
      "measured_at": "2026-10-31T22:01:45.334288+00:00",
      "url": "https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-g248-596f-9995"
    }
  }
}