easypanel-corenpm
Advisory published Updated
easypanel-core is a confirmed malicious npm package (MAL-2026-15897) that steals credentials and exfiltrates sensitive data (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in easypanel-core (npm)
What this malware does
easypanel-core ships an inert module.exports = {} main and places all functionality in a preinstall lifecycle script. On npm install, preinstall.js collects os.hostname(), os.userInfo().username, process.cwd(), and the names of CI-related environment variables, base64url-encodes them, and transmits the data to *.daco3v4q6f49egu1ds1gwjnsjb88s5kcp.oob.lyomeri.com via both a DNS subdomain lookup and an HTTP GET to /npm/<encoded>. The package name mimics the easypanel project and the description advertises a 'client library', while the shipped library exports nothing and provides no functionality — the install-time beacon is the sole behavior.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for easypanel-core (version 1.0.0).
If you installed it — respond
easypanel-core is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.
Did it already run?
If easypanel-core 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
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks easypanel-core-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.