MAL-2026-14186 Malicious code in pump-segments-sdk (npm)
Malicious package
Published
MAL-2026-14186 is a malicious package: pump-segments-sdk (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-2026-14186/ (Markdown: https://insights.sbomify.com/MAL-2026-14186/index.md)
- Package
- pump-segments-sdk
- Registry
- npm
What is MAL-2026-14186?
MAL-2026-14186 is a malicious package in pump-segments-sdk, published on 18 Aug 2026.
Official description
package.json declares a postinstall hook that runs index.js on install. The script collects the installer's hostname, full process.env, platform info, output of whoami/uname/id/ps aux, cwd, package.json, node_modules listing, /etc/passwd, /etc/shadow, ~/.npmrc, and ~/.npm/_logs, and POSTs the collected data over plain HTTP to a hardcoded oastify.com (Burp Collaborator) subdomain. The package presents itself as a netbsd-x64 esbuild build, which does not match the observed behavior. The read of ~/.npmrc exposes any npm auth tokens present on the installer host, and /etc/shadow read attempts to exfiltrate local password hashes.
What should I do about MAL-2026-14186?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.