morningstar-design-systemnpm
Advisory published Updated
morningstar-design-system is a confirmed malicious npm package (MAL-2026-5449) that steals credentials and exfiltrates sensitive data (malicious versions 99.0.0, 99.0.1, 99.0.2). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in morningstar-design-system (npm)
What this malware does
On npm install, the package's preinstall lifecycle script runs wget against a hardcoded bare-IP HTTP endpoint, passing the output of id, pwd, hostname, and ip a as URL query parameters. This leaks the installing user's username/UID/GID, working directory, hostname, and full network interface configuration to an attacker-controlled host automatically, before any other code runs. The package name targets Morningstar's organizational namespace and is published at an absurd 99.0.1 version — the canonical dependency-confusion shape designed to override an internal package of the same name. README self-identifies as a dependency-confusion PoC. Whether labeled research or not, the published artifact actively exfiltrates installer data to a third-party IP and is unsafe to install in any environment.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Search your lockfiles and build artifacts for morningstar-design-system (3 malicious versions).
If you installed it — respond
morningstar-design-system 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 morningstar-design-system 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 morningstar-design-system-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.