StepSecurity disclosed a June 24, 2026 Leo Platform npm supply-chain compromise affecting 20 packages published in a three-second burst. Socket and Sonatype then tied three more malicious npm packages to the same Miasma / Mini Shai-Hulud Phantom Gyp tradecraft, extending the incident into a 23-package campaign update.
#miasma
2 analyses tagged miasma, sorted newest first.
- Leo Platform npm Miasma / Phantom Gyp Compromise
- Miasma DurableTask GitHub Repository Compromise
On June 5, 2026, the official Azure/durabletask GitHub repository was compromised. Threat actors pushed a backdated commit ('Switched DataConverter to OrchestrationContext [skip ci]') that added a malicious tasks.json and configuration files targeting AI coding tools to execute credential-stealing payloads. Later follow-up reporting showed the broader Miasma/Hades campaign continued spreading across npm and PyPI through open-time and import-time triggers.