ETK-2026-3182Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-3182",
  "cve_id": null,
  "display_id": "ETK-2026-3182",
  "ghsa_id": "GHSA-6358-7h9p-8g5c",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Heap buffer overflow in OpenEXRCore deep tiled ZSTD decoding",
  "summary": "OpenEXRCore can write beyond an allocated buffer while decoding crafted ZSTD-compressed deep tiled EXR files. An attacker who can supply such a file to an application using the OpenEXRCore C API's single-pass decoding path may cause a crash or memory corruption.",
  "mitigation": "Upgrade OpenEXR to version 3.5.3 or later. Until upgrades are complete, avoid decoding untrusted deep tiled EXR files through the affected OpenEXRCore C API path.",
  "vendor": "other",
  "product": "other:OpenEXR",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "3.5.0-3.5.2"
      ],
      "ecosystem": "other",
      "fixed_versions": [
        "3.5.3"
      ],
      "package_name": "OpenEXR",
      "purl": null
    }
  ],
  "cwes": [
    122
  ],
  "cvss_score": 7,
  "cvss_src": "ethiack_provisional",
  "cvss_vector": null,
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 21.585422816666668,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-10-31T14:38:10+00:00",
      "days": -0.23019118741898148,
      "is_lower_bound": true,
      "measured_at": "2026-10-31T20:09:38.588707+00:00",
      "url": "https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-6358-7h9p-8g5c"
    }
  }
}