CVE-2026-92786
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk7th percentile - higher than 7% of all known CVEs
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.
Risk Assessment
A malicious model file can lead to memory corruption, application crash, or potentially arbitrary code execution in the context of the process handling the model. This poses a serious threat to confidentiality, integrity, and availability.
Recommendation
Upgrade LightGBM to a version newer than 4.7.0 and avoid loading text models from untrusted sources until the fix is applied.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS