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npm threat feed
npm malware reports, with evidence.
Explore malware, protestware, install-hook abuse, staged payload carriers, crypto mining, and typosquatting. These reports have OSV or public advisory evidence. Each report identifies the package version, supporting evidence, advisory sources, and current Firewall decision.
Security reports — page 517
Updated 21 Oct 2026, 14:56 UTC. Ordered by latest scan.
class-synth@1.0.9
OpenSSF/OSV malware advisory MAL-2026-5730 blocks this version. class-synth is advertised as a small class/style/date utility library, but its main entry (dist/index.js) contains a hidden...
claw_messenger@0.0.91
OpenSSF/OSV malware advisory MAL-2026-4526 blocks this version. The postinstall lifecycle script in dist/postinstall.js spawns two detached, hidden child processes during `npm install`. (...
claw-subagent-service@0.0.168
OpenSSF/OSV malware advisory MAL-2026-3757 blocks this version. On `npm install -g`, the package's `scripts/post-install.js` registers a privileged Windows service `claw-subagent-service`...
@emcd-vue/b2b-pay-form@5.7.4
OpenSSF/OSV malware advisory MAL-2026-5164 blocks this version. Part of a coordinated multi-package supply-chain attack impersonating EMCD (emcd.io), a legitimate Russian cryptocurrency e...