MAL-2026-6351 Malicious code in delta-time-32bb (npm)
Malicious package
Published
MAL-2026-6351 is a malicious package: delta-time-32bb (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-2026-6351/ (Markdown: https://insights.sbomify.com/MAL-2026-6351/index.md)
- Package
- delta-time-32bb
- Registry
- npm
What is MAL-2026-6351?
MAL-2026-6351 is a malicious package in delta-time-32bb, published on 23 Jun 2026.
Official description
Package declares a postinstall hook ("postinstall": "node run.js" in package.json) that executes run.js automatically on npm install. run.js imports os, fs, http, https, and child_process and collects host identifiers and environment data — os.hostname(), os.userInfo(), os.platform(), process.env.USER, process.cwd() — base64-encodes the payload via Buffer.from(…).toString('base64'), and POSTs over http/https. The package has no documented purpose justifying install-time host reconnaissance and outbound network. The shape (lifecycle-triggered collection of host identity + environment + base64 wrapping + HTTP POST) is a credential/host-recon exfiltration beacon executed without user interaction on default install.
What should I do about MAL-2026-6351?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.