Is @testsecuiitytestme/cache-helper malicious?
Yes. Protet confirmed 1 version of @testsecuiitytestme/cache-helper as malicious
First confirmed on 2026-11-07.
Affected versions
| Version | Confirmed | Protet record |
|---|---|---|
| 1.0.7 | 2026-11-07 | PROTET-NPM-2026-175 |
What it does
@testsecuiitytestme/cache-helper installs a credential stealer and self-spreading worm. On developer machines its install script loads a prebuilt native addon that decodes and runs a hidden, obfuscated program which collects package-registry, source-hosting, container and cloud credentials, Vault and Kubernetes secrets and SSH keys. Treat any machine that installed it as compromised and rotate all credentials from a different machine. Also listed as MAL-2026-18358.
Other reports
- Also reported in OSV as MAL-2026-18358
What to do if you installed it
- Remove the package from every project that uses it, directly or through another dependency.
- Pin a clean version if you need the package: one that is not listed above and that you have checked yourself, or replace the package. A version missing from this page is not cleared.
- Check your lockfiles (
package-lock.json,yarn.lock,pnpm-lock.yaml) for the affected versions, including as a transitive dependency, and in CI caches. - Rotate credentials that were reachable from any machine or build that installed it: npm and GitHub tokens, cloud keys, SSH keys, and secrets in environment variables or CI settings.
Status history
- 2026-11-07: 1.0.7 named by Protet Intel