A supply chain attack has compromised open-source packages associated with rspack and vant, injecting cryptomining malware. The compromised packages had hundreds of thousands of weekly downloads, posing a significant threat to users of these projects. The affected version is 1.1.7. This event underscores the growing threat of supply chain attacks targeting open-source software projects. The vulnerability emphasizes the need for stronger security protocols in open-source ecosystems and for better vetting of dependencies.