kojs0k (npm) · Malicious Code
Affects kojs0kSource GCVE Database
Malicious package : remove kojs0k and rotate any secrets on hosts that installed it.
Data as of 3 Nov 2026, 20:29 UTC
Malicious package
Published to npm · OSV MAL-2026-18549
What to do
Remove kojs0k 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 |
|---|---|---|
| npmkojs0k | 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 'kojs0k' contains malicious code that compromises any computer on which it is installed or running. Installation of this package results in a full system compromise, risking all stored secrets and keys. Immediate rotation of all credentials from a separate, uncompromised system is advised. Removal of the package alone does not guarantee elimination of all malicious software introduced.