CVE-2026-92786: Lightgbm-Org Lightgbm

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

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.

Affected products

• Lightgbm-Org Lightgbm: up to and including 4.7.0

Published 2026-09-16. Last modified 2026-09-24.