Which versions of @vanzky/baileys are malicious?

The following npm versions of @vanzky/baileys are flagged malicious: 0.0.0-stage, 1.0.0, 1.0.1, 1.0.2, 1.0.4. Treat any of these as compromised.

How do I remediate @vanzky/baileys if I installed it?

Remove @vanzky/baileys from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.

I already installed @vanzky/baileys — how do I know if it already compromised me?

If @vanzky/baileys was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

How do I find @vanzky/baileys across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for @vanzky/baileys (5 malicious versions).

Malicious package

@vanzky/baileysnpm

Advisory published Nov 2, 2026Updated Nov 10, 2026

@vanzky/baileys is a confirmed malicious npm package (MAL-2026-19055) that executes malicious code on install (malicious versions 0.0.0-stage, 1.0.0, 1.0.1…). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @vanzky/baileys (npm)

MAL-2026-19055

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall @vanzky/baileys

What this malware does

Malicious package. @vanzky/baileys is a trojanized fork of the Baileys WhatsApp library (@whiskeysockets/baileys). it silently subscribes every victim (via the injected WhatsApp newsletter/channel FOLLOW on connect) to attacker-controlled WhatsApp channels — hardcoded newsletter JIDs: 120363412479307951@newsletter, 120363413713776550@newsletter, 120363429868081610@newsletter. Legitimate Baileys never hardcodes a channel JID or auto-follows on connect; all published versions are malicious. Detected by wormsign static analysis of the injected channel-subscription code.

Malicious versions

5 flagged

0.0.0-stage1.0.01.0.11.0.21.0.4

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for @vanzky/baileys (5 malicious versions).
If you installed it — respond
Remove @vanzky/baileys from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If @vanzky/baileys was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. @vanzky/baileys on npm has been identified as a malicious package (versions 0.0.0-stage, 1.0.0, 1.0.1, 1.0.2, 1.0.4 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

References

wormsign.io

Credits

wormsign · finder

Detect & block this

O3 blocks @vanzky/baileys-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Malware detection Runtime egress monitoring

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