# MAL-2026-4473: Malicious code in @zizie071/libsignal-node (npm)


- **Type:** Malicious package
- **Package:** `@zizie071/libsignal-node` (npm)
- **Published:** 25 May 2026
- **Also known as:** GHSA-3425-gc6h-mm9j

## What is MAL-2026-4473?

MAL-2026-4473 is a malicious package in @zizie071/libsignal-node, published on 25 May 2026. 

### Official description

On require(), index.js schedules install.js which locates the installer's @whiskeysockets/baileys package on disk and overwrites lib/Socket/newsletter.js with an embedded payload (MODIFIED_NEWSLETTER_JS). The injected code fetches a JSON list from https://raw.githubusercontent.com/pipih071/SilenceV3/refs/heads/main/ch.json (a mutable, attacker-controlled raw GitHub URL) and uses the installer's authenticated WhatsApp session to silently auto-follow channels listed in that file. install.js writes a marker file (.cache containing 'Iove') under Baileys' node_modules to track the patch and calls process.exit(0) after patching to mask the side effect. The package self-identifies as 'Open Whisper Systems' libsignal for Node.js' under the @zizie071 scope, mimicking the well-known libsignal-node library API surface (SessionBuilder, SessionCipher, etc.) so unsuspecting developers pull it in as a drop-in replacement. Three independent supply-chain harms are present: (1) cross-package tampering — the package mutates a sibling vendor's installed source on the installer's machine, (2) attacker-controlled remote behavior — the patched code reads a mutable URL on each run so the attacker can change targeted channels at any time, (3) namespace abuse / impersonation of a well-known cryptography library to deliver the payload.

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-2026-4473?

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-2026-4473 is a malicious package: @zizie071/libsignal-node (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-2026-4473/ (Markdown: https://insights.sbomify.com/MAL-2026-4473/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-4473

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-4473/
Summaries are generated and may contain mistakes; the official description above is the record.