---
id: "MAL-2026-19219"
page: "https://infrastack.ai/live/MAL-2026-19219"
kind: "package"
aliases: ["MAL-2026-19219"]
title: "Malicious code in @wanzforme/bails4u (npm)"
severity: "critical"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "@wanzforme/bails4u", "fixed": [], "affected": "= 1.0.0", "ecosystem": "npm"}]
ecosystems: ["npm"]
tags: ["malicious", "package"]
not_affected_if: []
published_at: "2026-11-13T03:31:29+00:00"
first_seen_at: "2026-11-13T04:11:34+00:00"
updated_at: "2026-11-13T04:12:58+00:00"
sources: [{"source": "osv-malicious", "url": "https://osv.dev/vulnerability/MAL-2026-19219", "first_seen_at": "2026-11-13T04:11:34+00:00"}]
exploit_sources: []
---

# Malicious code in @wanzforme/bails4u (npm)

Link for people: https://infrastack.ai/live/MAL-2026-19219 (this .md is for agents)

## Affected

- npm:@wanzforme/bails4u affected = 1.0.0 fixed no fixed version listed

## Timeline

- 2026-11-13T04:11:34+00:00 osv-malicious https://osv.dev/vulnerability/MAL-2026-19219

## From the sources

---
_-= Per source details. Do not edit below this line.=-_

## Source: amazon-inspector (7db6d4bfe675bbaa2043f2958993761070ab6e5a09572d884082465b51bdf437)
package.json declares a runtime dependency `libsignal` with the source `github:wanzchil/libsignal-node`. The reference has no commit SHA, tag, or integrity hash, so `npm install` resolves whatever the referenced repository's default branch currently contains and executes any lifecycle scripts bundled with it on the installer's machine. The owner of wanzchil/libsignal-node can push new commits at any time, and future installs will fetch and run those bytes with no version pin and no verification — fully bypassing the npm registry's integrity model for this dependency. A separate static match in lib/Utils/generics.js around a `ping`/HTTP pattern is consistent with WhatsApp/Baileys-style network utilities and is not independently indicative of malice.

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