Openvul: Hierarchical Parent-Child Mappings for CWE-1000 Research View

Openvul Cwe Hierarchical Mapping provides parent-child relationship data for all Common Weakness Enumerations (CWEs) within the CWE-1000 Research view. Created by Leopo1d and updated in February 2026, the dataset contains fewer than 1,000 records to facilitate prediction-level CWE matching in security contexts.

Use Cases

• Mapping child CWE IDs to parent categories for vulnerability classification
• Developing hierarchical loss functions for machine learning models predicting CWE labels
• Graph-based analysis of software weakness relationships and inheritance

Strengths

• Covers all hierarchical relationships within the CWE-1000 Research view
• Apache 2.0 license allows for commercial and research integration
• Provided in optimized Parquet format for efficient loading

Limitations

• Small scale with fewer than 1,000 records
• Lack of descriptive metadata for individual CWEs beyond their hierarchical IDs

Provenance

Source

MITRE CWE-1000 Research view

Freshness

Last updated February 2026.