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Shai-Hulud npm Attack: Self-Replicating Supply Chain Worm
TLDR The Shai-Hulud npm attack represents the first successful self-replicating worm in the JavaScript ecosystem. This npm supply chain attack compromised over 180 packages between September 14-16, 2025. The malware steals developer credentials and secrets, then automatically spreads to other packages the victim maintains. Named after the giant sandworms from Dune, this JavaScript package security vulnerability marks a significant escalation in supply chain threats. The First Self-Replicating JavaScript Supply Chain Attack The Shai-Hulud npm attack emerged on September 15, 2025, when malicious versions of multiple popular packages were published to npm. This marked a dangerous evolution from previous attacks. Unlike targeted campaigns requiring human operators, the Shai-Hulud worm spreads automatically through compromised npm tokens. The novel malware strain is being dubbed Shai-Hulud —...
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