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    2 vulnerabilities by lightgbm-org

    CVE-2026-92786 (GCVE-0-2026-92786)

    Vulnerability from nvd – Published: 2026-09-16 20:32 – Updated: 2026-09-16 20:32
    VLAI
    Title
    LightGBM through 4.7.0 Out-of-Bounds Write via Crafted Model
    Summary
    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.
    Severity
    8.5 (High)
    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
    7.8 (High)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    lightgbm-org LightGBM Affected: 0 , ≤ 4.7.0 (semver)
    		Create a notification for this product.
    Date Public
    2026-07-10 00:00
    Credits
    George Chen
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "LightGBM",
          "vendor": "lightgbm-org",
          "versions": [
            {
              "lessThanOrEqual": "4.7.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "George Chen"
        }
      ],
      "datePublic": "2026-07-10T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T20:32:43.282Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Issue #7357",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/lightgbm-org/LightGBM/issues/7357"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/lightgbm-org/LightGBM"
        },
        {
          "name": "RecomputeLeafDepths writes at the bit-inverted child value with no bounds check",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/lightgbm-org/LightGBM/blob/v4.6.0/include/LightGBM/tree.h#L691-L698"
        },
        {
          "name": "child and split arrays are parsed with only a length check",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/lightgbm-org/LightGBM/blob/v4.6.0/src/io/tree.cpp#L750-L766"
        },
        {
          "name": "VulnCheck Advisory: LightGBM through 4.7.0 Out-of-Bounds Write via Crafted Model",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/lightgbm-through-4.7.0-out-of-bounds-write-via-crafted-model"
        }
      ],
      "title": "LightGBM through 4.7.0 Out-of-Bounds Write via Crafted Model",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-92786",
    "datePublished": "2026-09-16T20:32:43.282Z",
    "dateReserved": "2026-09-16T19:31:51.976Z",
    "dateUpdated": "2026-09-16T20:32:43.282Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

    CVE-2026-92786 (GCVE-0-2026-92786)

    Vulnerability from cvelistv5 – Published: 2026-09-16 20:32 – Updated: 2026-09-16 20:32
    VLAI
    Title
    LightGBM through 4.7.0 Out-of-Bounds Write via Crafted Model
    Summary
    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.
    Severity
    8.5 (High)
    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
    7.8 (High)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    lightgbm-org LightGBM Affected: 0 , ≤ 4.7.0 (semver)
    		Create a notification for this product.
    Date Public
    2026-07-10 00:00
    Credits
    George Chen
    Show details on NVD website
    To clipboard 

    {
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "LightGBM",
          "vendor": "lightgbm-org",
          "versions": [
            {
              "lessThanOrEqual": "4.7.0",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "George Chen"
        }
      ],
      "datePublic": "2026-07-10T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "LOCAL",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-787",
              "description": "Out-of-bounds Write",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T20:32:43.282Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Issue #7357",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/lightgbm-org/LightGBM/issues/7357"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/lightgbm-org/LightGBM"
        },
        {
          "name": "RecomputeLeafDepths writes at the bit-inverted child value with no bounds check",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/lightgbm-org/LightGBM/blob/v4.6.0/include/LightGBM/tree.h#L691-L698"
        },
        {
          "name": "child and split arrays are parsed with only a length check",
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/lightgbm-org/LightGBM/blob/v4.6.0/src/io/tree.cpp#L750-L766"
        },
        {
          "name": "VulnCheck Advisory: LightGBM through 4.7.0 Out-of-Bounds Write via Crafted Model",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/lightgbm-through-4.7.0-out-of-bounds-write-via-crafted-model"
        }
      ],
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        "engine": "vulncheck-endgame"
      }
    }
  },
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    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-92786",
    "datePublished": "2026-09-16T20:32:43.282Z",
    "dateReserved": "2026-09-16T19:31:51.976Z",
    "dateUpdated": "2026-09-16T20:32:43.282Z",
    "state": "PUBLISHED"
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}