What does the cms-store-ren malware do?

The OpenSSF Package Analysis project identified 'cms-store-ren' @ 1.1.1 (npm) as malicious. It is considered malicious because: - The package communicates with a domain associated with malicious activity.

Which versions of cms-store-ren are malicious?

The following npm versions of cms-store-ren are flagged malicious: 1.1.1. Treat any of these as compromised.

How do I remediate cms-store-ren if I installed it?

Remove cms-store-ren from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound network activity or persistence. Use O3 Security's dependency scanner to confirm the package and its artifacts are fully purged across your stack.

Can O3 Security detect cms-store-ren in my codebase?

Yes. O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, blocking cms-store-ren and packages like it before any post-install script runs.

Malicious package

cms-store-rennpm

Malicious code in cms-store-ren (npm) Remove it immediately and rotate any exposed credentials.

MAL-2026-5364

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall cms-store-ren

What this malware does

The OpenSSF Package Analysis project identified 'cms-store-ren' @ 1.1.1 (npm) as malicious.

It is considered malicious because:

The package communicates with a domain associated with malicious activity.

Malicious versions

1 flagged

1.1.1

Indicators of compromise (SHA-256)

1e0e43b074cffbde07a16c0b1ae1645b1edebcfa7fe192f6161237b0f011952d

Frequently asked questions

No. cms-store-ren on npm has been identified as a malicious package (version 1.1.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Credits

OpenSSF: Package Analysis · finder

Scan your dependencies

O3 Security blocks malicious packages like this at install time and in CI.

Supply-chain protection