Which versions of @rbacore/constants are malicious?

The following npm versions of @rbacore/constants are flagged malicious: 2.2.2. Treat any of these as compromised.

How do I remediate @rbacore/constants if I installed it?

Remove @rbacore/constants 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 activity or persistence.

I already installed @rbacore/constants — how do I know if it already compromised me?

If @rbacore/constants was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Is @rbacore/constants part of a known attack campaign?

Yes — @rbacore/constants is associated with the RLMA-2025-04859 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find @rbacore/constants across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for @rbacore/constants (version 2.2.2).

Part of a larger attack: @rbacore published 10 malicious packages. See the full campaign →

Malicious package

@rbacore/constantsnpm

Advisory published Aug 28, 2025Updated Sep 26, 2025

@rbacore/constants is a confirmed malicious npm package (MAL-2025-41916) that executes malicious code on install (malicious version 2.2.2). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @rbacore/constants (npm)

MAL-2025-41916

Immediate action

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

npm uninstall @rbacore/constants

What this malware does

The package communicates with a domain associated with malicious activity.

Malicious versions

1 flagged

2.2.2

Indicators of compromise (SHA-256)

b562287b326dfd92cf063566fdc2facfec6ed2b1c039b8f747f698ac6edb74ff

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for @rbacore/constants (version 2.2.2).
If you installed it — respond
Remove @rbacore/constants 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 activity or persistence.
Did it already run?
If @rbacore/constants was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. @rbacore/constants on npm has been identified as a malicious package (version 2.2.2 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2025-04859

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks @rbacore/constants-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.

Malware detection Runtime egress monitoring

Explore

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