CVE-2026-92786
LightGBM through 4.7.0 Out-of-Bounds Write via Crafted Model
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-787 |
| Vendor | lightgbm-org |
| Product | lightgbm |
| Published | Sep 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
lightgbm-org / LightGBM
0 ≤ 4.7.0
References
github.com: https://github.com/lightgbm-org/LightGBM/issues/7357 github.com: https://github.com/lightgbm-org/LightGBM github.com: https://github.com/lightgbm-org/LightGBM/blob/v4.6.0/include/LightGBM/tree.h#L691-L698 github.com: https://github.com/lightgbm-org/LightGBM/blob/v4.6.0/src/io/tree.cpp#L750-L766 vulncheck.com: https://www.vulncheck.com/advisories/lightgbm-through-4.7.0-out-of-bounds-write-via-crafted-model
Credits
George Chen