colossal_wallaby_pink-87npm
Advisory published Updated
colossal_wallaby_pink-87 is a confirmed malicious npm package (MAL-2026-18606) that executes malicious code on install (malicious version 1.2.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in colossal_wallaby_pink-87 (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: 1.2.1; tarball SHA-256 eefa5998b053240ecd251b218193b2352c7dc55759fcaaeeb814f3c5fccf9539.
Malicious versions
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for colossal_wallaby_pink-87 (version 1.2.1).
If you installed it — respond
Remove colossal_wallaby_pink-87 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 colossal_wallaby_pink-87 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 colossal_wallaby_pink-87-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.