{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "last_affected": "4.7.0"
              },
              {
                "fixed": "4.7.0"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "DESCRIPTION"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8f7036f03627054d5a54a6f965b13f4b9ff2cb63"
            }
          ],
          "repo": "https://github.com/lightgbm-org/lightgbm",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-787"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92786.json"
  },
  "details": "LightGBM through 4.7.0 fails to validate child and split array values when parsing text models, allowing attackers to write out-of-bounds memory during SHAP prediction. Attackers can craft malicious model files with invalid node references that trigger out-of-bounds writes at attacker-chosen offsets in the leaf_depth_ buffer during feature contribution computation.",
  "id": "CVE-2026-92786",
  "modified": "2026-09-26T03:30:47.039691184Z",
  "published": "2026-09-16T20:32:43.282Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/92xxx/CVE-2026-92786.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92786"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/lightgbm-through-4.7.0-out-of-bounds-write-via-crafted-model"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/lightgbm-org/LightGBM/issues/7357"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/lightgbm-org/LightGBM"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/lightgbm-org/LightGBM/blob/v4.6.0/include/LightGBM/tree.h#L691-L698"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/lightgbm-org/LightGBM/blob/v4.6.0/src/io/tree.cpp#L750-L766"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "LightGBM through 4.7.0 Out-of-Bounds Write via Crafted Model"
}