test22221 (npm) · Malicious Code
Affects test22221Source GCVE Database
Malicious package : remove test22221 and rotate any secrets on hosts that installed it.
Data as of 26 Oct 2026, 16:15 UTC
Malicious package
Published to npm · OSV MAL-2026-12478
What to do
Remove test22221 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 |
|---|---|---|
| npmtest22221 | Affected
| Fixed in– |
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Description
The npm package 'test22221' versions 2.2.7, 2.2.8, and 2.2.9 contain malicious lifecycle scripts that execute during installation. These scripts send host-identification data to an attacker-controlled IP address over plain HTTP and maintain a persistent long-polling connection to the same endpoint. This behavior is unauthorized and serves no legitimate purpose in the installation process.