CVE-2026-92786
HIGH
NVD
CVSS Score
7.8
Severity
HIGH
Published
Sep 16, 2026
Vendor
unknown
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.
References
- https://github.com/lightgbm-org/LightGBM
- https://github.com/lightgbm-org/LightGBM/blob/v4.6.0/include/LightGBM/tree.h#L691-L698
- https://github.com/lightgbm-org/LightGBM/blob/v4.6.0/src/io/tree.cpp#L750-L766
- https://github.com/lightgbm-org/LightGBM/issues/7357
- https://www.vulncheck.com/advisories/lightgbm-through-4.7.0-out-of-bounds-write-via-crafted-model