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## The Descent into Chaos: Complexity and Hidden Costs ### Unexpected Costs and Performance GitHub Actions may seem affordable at first glance. However, many users report skyrocketing costs with increased usage, especially with expensive macOS runners and costly artifact storage. A startup that migrated to GitHub Actions saw its CI costs multiply fivefold, a stark example of the budgetary pitfalls awaiting unwary teams. ### Reliability: Where's the Uptime? Reliability issues are not uncommon. Jobs get stuck, runners start slowly, and queues grow longer. For a tool meant to accelerate development, it's a paradox. Projects like Zig even considered leaving GitHub due to these recurring malfunctions. ## Security: A Weak Link ### Over-Privileged and Secret Leaks The security of GitHub Actions workflows leaves much to be desired. A study revealed that 99.8% of workflows are over-privileged. This means repositories are vulnerable to attacks that could be avoided with more stringent permission management. ### Supply Chain Attacks The incident with tj-actions/changed-files in March 2025 is an example of risk where malicious code exposed secrets and sensitive tokens. With over 23,000 repositories affected, this event underscores the need for increased vigilance. ## A Significant Environmental Impact GitHub Actions' ecological impact is also concerning. In 2024, the workflows generated between 150.5 and 994.9 million tons of CO₂ equivalent. For companies mindful of their carbon footprint, this is a significant factor.
Related Pain Points4件
Over-privileged GitHub Actions workflows
899.8% of GitHub Actions workflows are over-privileged, meaning repositories grant excessive permissions that increase vulnerability to attacks. Secrets are scoped at repository or organization level, flowing broadly by default in reusable workflows without fine-grained controls to bind credentials to specific execution contexts.
GitHub Actions control plane reliability and infrastructure issues
7GitHub Actions suffers from recurring control plane problems including broker/backend message relay failures, hung logs, unexplained outages, and unsafe default behaviors (e.g., safe_sleep). These are long-standing issues that undermine trust in CI/CD reliability.
GitHub Actions pricing changes break enterprise budgets with short notice
7GitHub suddenly introduced additional per-minute charges for GitHub Actions minutes in December, breaking established budgets across enterprise teams. No per-second billing option exists, and the announcement left no time for departments to adjust fiscal budgets, creating surprise costs mid-fiscal-year.
Environmental impact from GitHub Actions CI/CD
4GitHub Actions workflows generated between 150.5 and 994.9 million tons of CO₂ equivalent in 2024, creating a significant environmental concern for companies mindful of their carbon footprint.