wsh4_npm (npm) · Malicious Code
Affects wsh4_npmSource GCVE Database
Malicious package : remove wsh4_npm and rotate any secrets on hosts that installed it.
Data as of 26 Oct 2026, 15:56 UTC
Malicious package
Published to npm · OSV MAL-2026-6954
What to do
Remove wsh4_npm 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 |
|---|---|---|
| npmwsh4_npm | 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 wsh4_npm package on the npm ecosystem contains malicious code that compromises any computer on which it is installed or running. The presence of this package indicates a full system compromise, requiring immediate rotation of all secrets and keys from a separate, uncompromised machine. Removing the package alone does not guarantee eradication of all malicious software introduced by it.