ETK-2026-3188Zero's internal tracking ID, independent of the CVE number.

{
  "etk_id": "ETK-2026-3188",
  "cve_id": null,
  "display_id": "ETK-2026-3188",
  "ghsa_id": "GHSA-hrp4-xjp5-cq7j",
  "euvd_id": null,
  "status": "published",
  "anchor_state": "awaiting_cve",
  "title": "Misaligned memory write in OpenEXR HTJ2K decoding",
  "summary": "OpenEXR's HTJ2K decoder can perform an improperly aligned 32-bit memory write while processing a crafted HT-compressed EXR image. An attacker who can cause an application to decode such a file may trigger a denial of service on alignment-sensitive platforms and may cause incorrect output on other systems.",
  "mitigation": "Upgrade OpenEXR to version 3.4.17, 3.5.3, or a later release. Until upgrading, avoid decoding untrusted HT-compressed EXR files.",
  "vendor": "c/c++",
  "product": "other:OpenEXR",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "3.4.0-3.4.14",
        "3.5.0-3.5.2"
      ],
      "ecosystem": "c/c++",
      "fixed_versions": [
        "3.4.17",
        "3.5.3"
      ],
      "package_name": "OpenEXR",
      "purl": null
    }
  ],
  "cwes": [
    704
  ],
  "cvss_score": 7.1,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 29.12613225,
  "t0_at": null,
  "signals": {
    "trigger_signal": {
      "at": "2026-10-31T14:41:29+00:00",
      "days": -0.28661222488425925,
      "is_lower_bound": true,
      "measured_at": "2026-10-31T21:34:12.328188+00:00",
      "url": "https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-hrp4-xjp5-cq7j"
    }
  }
}