Software supply chain security is hard

Software Composition Analysis (SCA) tools are essential for managing security risks associated with open-source libraries but are often criticized for being overly noisy and generating false positives. This noise leads to frustration and inefficiencies among AppSec teams and developers due to the tools' inability to differentiate between actual vulnerabilities and benign instances. The blog post highlights the limitations of traditional SCA tools, exemplified by their tendency to flag every instance of a library as vulnerable without considering the specific usage context. The proposed solution is reachability analysis, which more precisely identifies when and how vulnerable methods are utilized, thereby reducing unnecessary alerts and improving collaboration between security and development teams. The introduction of tools like Semgrep Supply Chain aims to enhance this approach by focusing on real threats, helping prioritize critical issues, and reducing cross-team friction.