CVE-2026-92786
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability8. percentile0.2%
ProductLightGBM
PublishedSep 16, 2026
First seenSep 16, 2026
Weakness typeCWE-787Out-of-bounds write
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| lightgbm-org LightGBM | v ≤ 4.7.0 | — |
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