Cordyceps Vulnerabilities Threaten Over 300 GitHub Repositories
In June 2026, cybersecurity firm Novee identified a systemic class of vulnerabilities, dubbed 'Cordyceps,' within GitHub Actions workflows. These flaws enable unauthenticated attackers to hijack continuous integration and continuous deployment (CI/CD) pipelines by exploiting insecure configurations in YAML files. The vulnerabilities affect repositories from major organizations, including Microsoft, Google, Apache, Cloudflare, and the Python Software Foundation, potentially compromising software supply chains and exposing sensitive credentials. ([securityweek.com](https://www.securityweek.com/exploitable-ci-cd-vulnerabilities-expose-millions-of-repositories-to-hijacking/?utm_source=openai)) This incident underscores the escalating risks associated with CI/CD pipeline security, especially as AI-driven coding tools proliferate. Organizations must prioritize securing their development workflows to prevent similar supply chain attacks, which are becoming increasingly sophisticated and widespread. ([mallory.ai](https://www.mallory.ai/stories/019ef4cf-b141-7c22-b785-3b7e99e1c73f?utm_source=openai))
Kill Chain