Which versions of inter-site-components are malicious?

The following npm versions of inter-site-components are flagged malicious: 99.0.0. Treat any of these as compromised.

How do I remediate inter-site-components if I installed it?

Remove inter-site-components 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 inter-site-components — how do I know if it already compromised me?

If inter-site-components 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 inter-site-components part of a known attack campaign?

Yes — inter-site-components is associated with the RLMA-2026-01357 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 inter-site-components across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for inter-site-components (version 99.0.0).

Malicious package

inter-site-componentsnpm

Advisory published Mar 18, 2026Updated Mar 23, 2026

inter-site-components is a confirmed malicious npm package (MAL-2026-1751) that executes malicious code on install (malicious version 99.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in inter-site-components (npm)

MAL-2026-1751

Immediate action

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

npm uninstall inter-site-components

What this malware does

The package inter-site-components was found to contain malicious code.

Malicious versions

1 flagged

99.0.0

Indicators of compromise (SHA-256)

a61db225042388e251076ceac397a58d223d382948a7f30453cc98e16efa713a

ad622d6ddd0ce9148ff340b01f319e962703b87b7aa2cb0284e97d7d880f0d90

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for inter-site-components (version 99.0.0).
If you installed it — respond
Remove inter-site-components 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 inter-site-components 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. inter-site-components on npm has been identified as a malicious package (version 99.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01357

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks inter-site-components-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

All malware advisories How O3 detects malware Vulnerability database