@revizahoshii/hoshino (npm) · Malicious Code
Affects @revizahoshii/hoshinoSource GCVE Database
Malicious package : remove @revizahoshii/hoshino and rotate any secrets on hosts that installed it.
Data as of 12 Oct 2026, 22:48 UTC
Malicious package
Published to npm · OSV MAL-2026-17376
What to do
Remove @revizahoshii/hoshino 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@revizahoshii/hoshino | Affected
| Fixed in– |
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Description
The npm package @revizahoshii/hoshino version 1.1.0 is a malicious fork of the Baileys WhatsApp Web library. It injects code that silently subscribes the victim's authenticated WhatsApp account to attacker-controlled channels without user consent. The target channels are obfuscated or dynamically fetched, allowing attackers to modify targets after installation. The malicious code abuses the authenticated session but does not steal credentials, maintain persistence, or execute arbitrary code.