@wanzlonely/bails4u (npm) · Malicious Code
Affects @wanzlonely/bails4uSource GCVE Database
Malicious package : remove @wanzlonely/bails4u and rotate any secrets on hosts that installed it.
Data as of 29 Oct 2026, 14:02 UTC
Malicious package
Published to npm · OSV MAL-2026-17381
What to do
Remove @wanzlonely/bails4u from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| npm@wanzlonely/bails4u | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
The npm package @wanzlonely/bails4u versions 2.0.0, 3.0.0, 4.0.0, and 5.0.0 are malicious forks of the Baileys WhatsApp Web library. These versions contain injected code that silently subscribes the victim's WhatsApp account to attacker-controlled channels using the victim's authenticated session. The malicious code does not steal credentials, establish persistence, or execute arbitrary remote code, and the targeted channels are obfuscated or dynamically fetched to evade detection.
References
- ox.security/blog/phantomsub-malicious-npm-campaign-secretly-adds-users-to-whatsapp-spam-channels/ (opens in a new tab)
- github.com/advisories/GHSA-4327-j8v7-q48w (opens in a new tab)
- npmjs.com/package/@wanzlonely/bails4u/v/2.0.0 (opens in a new tab)
- npmjs.com/package/@wanzlonely/bails4u/v/3.0.0 (opens in a new tab)
- npmjs.com/package/@wanzlonely/bails4u/v/7.0.0 (opens in a new tab)
- npmjs.com/package/@wanzlonely/bails4u/v/6.0.0 (opens in a new tab)
- npmjs.com/package/@wanzlonely/bails4u/v/5.0.0 (opens in a new tab)