inadequate_earwig_magenta-66npm
Advisory published Updated
inadequate_earwig_magenta-66 is a confirmed malicious npm package (MAL-2026-18611) that executes malicious code on install (malicious version 3.4.3). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in inadequate_earwig_magenta-66 (npm)
What this malware does
Part of a self-republishing campaign: generated names of the form <adjective><animal><colour>-<number>, each package shipping the same autopublish.js, which runs npm publish --access public to publish the package again. Self-replicating publication is the propagation step of a registry worm and fills the registry with copies. Version examined: 3.4.3; tarball SHA-256 cdf7bcc56962d977f34fdb72789ce2b6aaac0020f0debb9ce4d55de8257ac352.
Malicious versions
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for inadequate_earwig_magenta-66 (version 3.4.3).
If you installed it — respond
Remove inadequate_earwig_magenta-66 from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If inadequate_earwig_magenta-66 was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.
Frequently asked questions
Credits
- Oluwatosin Amokeodo · finder
Detect & block this
O3 blocks inadequate_earwig_magenta-66-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.