Which versions of @justinofficial/baileys are malicious?

The following npm versions of @justinofficial/baileys are flagged malicious: 2.0.13. Treat any of these as compromised.

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

Remove @justinofficial/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 @justinofficial/baileys — how do I know if it already compromised me?

If @justinofficial/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 @justinofficial/baileys across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for @justinofficial/baileys (version 2.0.13).

Malicious package

@justinofficial/baileysnpm

Advisory published Oct 27, 2026Updated Nov 9, 2026

@justinofficial/baileys is a confirmed malicious npm package (MAL-2026-18852) that executes malicious code on install (malicious version 2.0.13). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @justinofficial/baileys (npm)

MAL-2026-18852

Immediate action

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

npm uninstall @justinofficial/baileys

What this malware does

@justinofficial/baileys is a fork of the Baileys WhatsApp Web library that silently subscribes the installer's own WhatsApp account to WhatsApp Channels chosen by the publisher. When the socket connects, code in lib/Socket/newsletter.js sends the WhatsApp w:mex FOLLOW query for the channel ID(s) 120363402525934262@newsletter, 120363405070719777@newsletter, 120363424226911959@newsletter (stored as character-code arrays), using the victim's authenticated session and without telling them. Same behaviour as the PhantomSub family (MAL-2026-17342).

Malicious versions

1 flagged

2.0.13

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for @justinofficial/baileys (version 2.0.13).
If you installed it — respond
Remove @justinofficial/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 @justinofficial/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. @justinofficial/baileys on npm has been identified as a malicious package (version 2.0.13 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

References

Credits

CyberXYZ · finder

Detect & block this

O3 blocks @justinofficial/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

Explore

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