# MAL-2026-16389: Malicious code in noverojava (npm)


- **Type:** Malicious package
- **Package:** `noverojava` (npm)
- **Published:** 22 Sep 2026

## What is MAL-2026-16389?

MAL-2026-16389 is a malicious package in noverojava, published on 22 Sep 2026. 

### Official description

package.json declares the runtime dependency `libsignal` as `github:tenka-san/libsignal-node` rather than a registry version range or pinned commit SHA. On `npm install`, npm fetches the current HEAD of that fork's default branch and executes any lifecycle scripts it defines. The fork is under a third-party GitHub account (not the upstream WhiskeySockets libsignal-node maintainer), has no commit pin, and no integrity check, so whoever controls that account controls code that runs on the installer's machine at install time. The package presents as a Baileys/WhatsApp library fork; the static match on lib/Utils/generics.js line 403 (ping/GET tokens) is consistent with normal Baileys network code and is not independently indicative of exfiltration.

## What should I do about MAL-2026-16389?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

## Fix prompt for AI coding agents

```text
MAL-2026-16389 is a malicious package: noverojava (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-2026-16389/ (Markdown: https://insights.sbomify.com/MAL-2026-16389/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-16389

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-16389/
Summaries are generated and may contain mistakes; the official description above is the record.