javas-crypto (npm) · Malicious Code
Affects javas-cryptoSource GCVE Database
Malicious package : remove javas-crypto and rotate any secrets on hosts that installed it.
Data as of 5 Aug 2026, 23:02 UTC
Malicious package
Published to npm · OSV MAL-2026-13347
What to do
Remove javas-crypto 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 |
|---|---|---|
| npmjavas-crypto | 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 javas-crypto version 2.0.4 contains malicious code that automatically exfiltrates environment variables, including sensitive credentials, to an attacker-controlled HTTP endpoint. This exfiltration occurs both during npm install via a postinstall hook and whenever the package is imported or required. The package disguises this behavior as a security feature for CI/CD pipelines, silently swallowing transmission errors to avoid detection.