nodemon-slintnpm
Advisory published Updated
nodemon-slint is a confirmed malicious npm package (MAL-2026-10117) that steals credentials and exfiltrates sensitive data (malicious version 3.1.13). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in nodemon-slint (npm)
What this malware does
Package name, README, homepage (nodemon.io), author (remy), and source tree are copied verbatim from the widely-used 'nodemon' package, with the addition of a single novel runtime dependency 'type-slint' (^3.3.7) declared in package.json. That dependency is never imported by any file reachable from the declared main (lib/nodemon.js) or from bin/, so it serves no functional purpose within this package. The only installer-facing effect of the manifest change relative to nodemon is that 'npm install nodemon-slint' also resolves and installs 'type-slint' into the installer's dependency tree, where any install-time hooks or load-time side effects it contains will run. The host package itself does not exhibit exfiltration, install-time RCE, or backdoor behavior in its own code; the risk is carried by the co-installed sibling. Name similarity to 'nodemon' (a top-tier package) plus injection of an unreferenced dependency is the namespace-abuse / typosquat-dropper shape.
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
Credential / info stealerFind it
Search your lockfiles and build artifacts for nodemon-slint (version 3.1.13).
If you installed it — respond
nodemon-slint 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 nodemon-slint 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 nodemon-slint-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.