meraz-project-trackernpm
Advisory published Updated
meraz-project-tracker is a confirmed malicious npm package (MAL-2026-16161) that executes malicious code on install (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in meraz-project-tracker (npm)
What this malware does
On npm install, the declared postinstall script (bin/postinstall.js) runs trackProject(), which collects the installer's hostname, OS username, platform/arch, Node version, consumer project name/version/path, git branch/commit and remote.origin.url (via execSync of git commands in the consumer project directory), and public IP with IP-derived geolocation, then POSTs the report to the hardcoded endpoint https://project-tracker-mu-vert.vercel.app/api/telemetry. On interactive/TTY installs, the postinstall additionally starts a loopback HTTP server and auto-opens the default browser to a page whose DOMContentLoaded handler calls navigator.geolocation.getCurrentPosition and forwards the precise lat/lon/accuracy to the same author endpoint. The behavior is opt-out only (PROJECT_TRACKER_DISABLED) and also fires in CI. Private git remote URLs and precise device GPS coordinates are shipped to a third-party server as a side effect of installation.
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Search your lockfiles and build artifacts for meraz-project-tracker (version 1.0.0).
If you installed it — respond
Remove meraz-project-tracker 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 meraz-project-tracker 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 meraz-project-tracker-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.