UST in time vulnerability detection and localization

This paper introduces a novel framework, July, which serves the dual purpose of detecting vulnerable commits and localizing the root causes of the vulnerabilities. The fundamental concept of July is that the determinant of the vulnerability of a commit is the inherent meaning embedded in its changed code. For just-in-time vulnerability detection (JIT-VD), July represents each commit by a Code Transformation Graph and employs a Graph Neural Network model to capture their meanings and distinguish between vulnerable and non-vulnerable commits.