CVE-2026-84446

{
  "etk_id": "ETK-2026-523",
  "cve_id": "CVE-2026-84446",
  "display_id": "CVE-2026-84446",
  "ghsa_id": "GHSA-xw34-mjcp-jqh8",
  "euvd_id": "EUVD-2026-83017",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Resource exhaustion in libheif HEIF sequence handling",
  "summary": "libheif before 1.23.2 can consume excessive CPU or memory or fail to finish processing a specially crafted HEIF sequence. An attacker must cause an application using the affected sequence-processing paths to open untrusted HEIF content.",
  "mitigation": "Upgrade libheif to version 1.23.2 or later. Until upgraded, restrict processing of untrusted HEIF sequence files, particularly where sequence or raw-sample APIs are enabled.",
  "vendor": "strukturag",
  "product": "libheif",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 1.23.1"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "1.23.2"
      ],
      "package_name": null,
      "purl": null
    }
  ],
  "cwes": [
    835
  ],
  "cvss_score": 7.5,
  "cvss_src": "nvd",
  "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss_score": 0.0046,
  "epss_percentile": 0.3845,
  "epss_asof": "2026-10-20",
  "automation": "deterministic",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 77.9520062,
  "t0_at": "2026-09-18T15:54:48.945000+00:00",
  "signals": {
    "trigger_signal": {
      "at": "2026-09-18T15:54:48.945000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-09-18T15:54:48.945000+00:00",
      "url": "https://github.com/strukturag/libheif/security/advisories/GHSA-xw34-mjcp-jqh8"
    }
  }
}