Malicious code in @chatunity/baileys (npm)

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

--- _-= Per source details. Do not edit below this line.=-_ ## Source: amazon-inspector (acc8739717b3768c51a56da3a23b85b253b0bc08a2ab4a447e278d055c8a2e70) This package presents itself as a fork of the Baileys WhatsApp library. On every successful login through makeWASocket, lib/Socket/socket.js invokes autoSubscribeToDefaultNewsletterIfRequired(), which calls followNewsletterWMex with the hardcoded JID '120363418582531215@newsletter' — an author-controlled WhatsApp newsletter. The behavior is undocumented in the README, persists across sessions via a flag (basedbysam) stored in the credentials file, and uses the consumer's authenticated WhatsApp session to perform an account action (following a channel) without consent. Any bot or application built on top of this library will silently enroll its WhatsApp account as a follower of the author's channel. Additionally, package.json pins the critical libsignal cryptographic dependency to an unpinned GitHub branch (github:realvare/libsignal), meaning the owner of that repo can ship arbitrary crypto code to installers at any time without a version bump. ## Source: ghsa-malware (91f51e9df3ce8c75b411231fdaa15fe49a42b616a168e6c84363229c5519b40f) 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.

Source published

29 Sep 2026 21:42:03 UTC

Source modified

13 Oct 2026 07:45:14 UTC

Observed here

24 Oct 2026 13:17:17 UTC

Source terms

OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.