Which versions of insomnia-api are malicious?

The following npm versions of insomnia-api are flagged malicious: 99.0.0, 99.0.1. Treat any of these as compromised.

How do I remediate insomnia-api if I installed it?

Remove insomnia-api 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 insomnia-api — how do I know if it already compromised me?

If insomnia-api 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 insomnia-api part of a known attack campaign?

Yes — insomnia-api is associated with the RLMA-2026-01974 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 insomnia-api across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for insomnia-api (2 malicious versions).

Malicious package

insomnia-apinpm

Advisory published Apr 16, 2026Updated Apr 23, 2026

insomnia-api is a confirmed malicious npm package (MAL-2026-2773) that executes malicious code on install (malicious versions 99.0.0, 99.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in insomnia-api (npm)

MAL-2026-2773

Immediate action

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

npm uninstall insomnia-api

What this malware does

The package insomnia-api was found to contain malicious code.

Malicious versions

2 flagged

99.0.099.0.1

Indicators of compromise (SHA-256)

c7adcb182b0b8a57e138a7cb0a53e64e34a89f23d5db32756fc0f4ec18cd0465

62ef28a051caf1396ddc2679da2de7e5ee5786101e51a8b3b01cab3c68b60235

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for insomnia-api (2 malicious versions).
If you installed it — respond
Remove insomnia-api 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 insomnia-api 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. insomnia-api on npm has been identified as a malicious package (versions 99.0.0, 99.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01974

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks insomnia-api-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