MAL-2026-5415 Malicious code in @klapp-login-platform/routes (npm)
Malicious package
Published
MAL-2026-5415 is a malicious package: @klapp-login-platform/routes (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-5415/ (Markdown: https://insights.sbomify.com/MAL-2026-5415/index.md)
- Package
- @klapp-login-platform/routes
- Registry
- npm
What is MAL-2026-5415?
MAL-2026-5415 is a malicious package in @klapp-login-platform/routes, published on 9 Jun 2026.
Official description
On
npm install, the package's preinstall lifecycle hook executes index.js, which collects the installer's hostname, username, package install path (__dirname), current working directory, and package name, serializes them to JSON, hex-encodes the result, and exfiltrates the data through two channels: DNS lookups against subdomains of d8jbmnsqcfu78dfs8vdg34ohqhirb4pbg.oast.live (an Interactsh out-of-band callback host) and an HTTP POST to the bare IP endpoint http://172.201.213.59:9090/c. The package ships almost no functional code; its purpose is the beacon. The scope @klapp-login-platform paired with an inflated 99.0.2 version and a generic routes name fits the canonical dependency-confusion pattern of publishing a high-version public package to shadow an internal private package of the same name, causing affected build environments to resolve and install this attacker-controlled release.What should I do about MAL-2026-5415?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.