# MAL-2026-6281: Malicious code in libsignal-node-travatiger (npm)


- **Type:** Malicious package
- **Package:** `libsignal-node-travatiger` (npm)
- **Published:** 23 Jun 2026
- **Also known as:** GHSA-j2x4-j4hc-mvcv

## What is MAL-2026-6281?

MAL-2026-6281 is a malicious package in libsignal-node-travatiger, published on 23 Jun 2026. 

### Official description

On require() of this package, index.js schedules install.js which locates @whiskeysockets/baileys in the installer's node_modules tree (searching process.cwd(), parent directories, and require.resolve) and overwrites lib/Socket/newsletter.js with an attacker-controlled replacement. A.cache marker is dropped to make the patch idempotent and persistent across reinstalls. The replacement newsletter.js, once the installer uses Baileys with their authenticated WhatsApp session, runs a setTimeout (~120s after socket creation) that fetches https://raw.githubusercontent.com/travatiger/MegaTeam/main/channel.json — a mutable, attacker-controlled URL — and invokes WhatsApp's newsletter FOLLOW mutation (newsletterWMexQuery with Types_1.QueryIds.FOLLOW) for each returned channel ID, silently using the installer's authenticated WhatsApp identity to follow channels chosen by the attacker. Because the channel list lives in a mutable GitHub repo, the attacker can change targets — or, more dangerously, the response-handling logic — at any time without republishing the npm package. The package name impersonates the legitimate libsignal-node Signal Protocol library and the description claims 'Modified libsignal for Node.js' to lend legitimacy to the lure. Three independent harms: (1) tampering with a sibling trusted package's on-disk source, (2) install-time persistence outside this package's own directory, (3) silent relay/abuse of the installer's authenticated WhatsApp session for attacker benefit.

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

## What should I do about MAL-2026-6281?

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-2026-6281 is a malicious package: libsignal-node-travatiger (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-2026-6281/ (Markdown: https://insights.sbomify.com/MAL-2026-6281/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-6281

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-6281/
Summaries are generated and may contain mistakes; the official description above is the record.