Miasma Malware Targets npm Packages and GitHub Actions in Supply Chain Attack
In June 2026, a sophisticated supply chain attack known as 'Miasma' compromised 32 npm packages under Red Hat's @redhat-cloud-services namespace. The attackers gained access through a compromised Red Hat employee's GitHub account, allowing them to push malicious commits that bypassed standard peer reviews. These commits exploited GitHub Actions workflows to publish trojanized package versions to the public npm registry. Upon installation, these packages executed an obfuscated payload designed to steal credentials from various platforms, including GitHub, AWS, Azure, and Google Cloud Platform. The malware also attempted to propagate by compromising additional maintainer packages and, in some cases, could destroy the maintainer’s home directory. ([microsoft.com](https://www.microsoft.com/en-us/security/blog/2026/06/02/preinstall-persistence-inside-red-hat-npm-miasma-credential-stealing-campaign/?utm_source=openai)) This incident underscores the escalating threat of supply chain attacks targeting open-source ecosystems. The Miasma campaign highlights the need for enhanced security measures in CI/CD pipelines and vigilant monitoring of package repositories to prevent unauthorized access and mitigate the risk of widespread credential theft and system compromise.
Kill Chain
