On the Informativeness of Security Commit Messages: A Large-scale Replication Study

2026-04-22

AI Summary

This study addresses the pervasive issue of insufficiently informative security-related commit messages, which hinders the efficient dissemination of vulnerability fixes. Without relying on original datasets or toolchains, the authors independently reproduce and extend prior work by analyzing over 50,000 security commits spanning multiple software ecosystems and extended time periods. Employing a novel text analysis methodology integrated with time-series and cross-ecosystem statistical techniques, they find that security commit messages are generally low in informativeness and exhibit a declining trend over time. Significant disparities exist across different software ecosystems, and notably, commits adhering to the Conventional Commits specification tend to be even less informative. These findings provide empirical evidence to guide improvements in secure development practices.

Technology Category

• Application Domains: Security
• Natural Language Processing: Safety and Robustness
• Reasoning under Uncertainty: Other Foundations of Reasoning under Uncertainty

Application Category

• Security and Privacy: Large-scale security measurements
• Web Mining and Content Analysis: Robustness and generalizability of Web mining methods
• User Modeling, Personalization and Recommendation: Attacks and countermeasures in recommendation systems

Abstract

The informativeness of security-related commit messages is crucial for patch triage: when high, it enables the rapid distribution and deployment of security fixes. Prior research (Reis et al., 2023) reported, however, that commit messages are often too uninformative to support these activities. To assess the robustness of this negative result, we independently replicate the original study using only the information provided in the paper, without reusing any of the original artifacts (data, analysis pipeline, etc.). We retrieve \num{50673} security-related commits and analyze their informativeness using an independent re-implementation of the techniques introduced by Reis et al. For the same source (i.e., GitHub) and time period (from June 1999 to August 2022) as the original study, our replication confirms the original findings in a statistically significant way: security-related commit messages are, in general, not informative enough for security-focused purposes. We then extend the original study in several ways. Over a longer time period (from June 1999 to October 2025), we find that commit-message informativeness is worsening. Breaking results down by software ecosystem (Linux kernel, Ubuntu, Go, PyPI, etc.), we observe significant differences in informativeness. Finally, we examine emerging best practices for writing commit messages, such as the Conventional Commits Specification (CCS), and again find significant differences in an unexpected direction: CCS-compliant commits are less informative than non-compliant ones. Our findings highlight the need for cross-ecosystem analyses to understand platform- and community-specific commit-message practices, and to inform the development and adoption of universally applicable guidelines for writing informative security-related commit messages.

Problem

• security commit messages
• informativeness
• patch triage
• software ecosystems
• Conventional Commits

Innovation

• commit message informativeness
• security patch triage
• replication study
• software ecosystems
• Conventional Commits Specification