Which versions of chai-promised-plugin are malicious?

The following npm versions of chai-promised-plugin are flagged malicious: 2.3.5. Treat any of these as compromised.

How do I remediate chai-promised-plugin if I installed it?

Remove chai-promised-plugin 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 chai-promised-plugin — how do I know if it already compromised me?

If chai-promised-plugin 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 chai-promised-plugin part of a known attack campaign?

Yes — chai-promised-plugin is associated with the RLMA-2026-01186 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 chai-promised-plugin across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for chai-promised-plugin (version 2.3.5).

Malicious package

chai-promised-pluginnpm

Advisory published Mar 18, 2026Updated Mar 23, 2026

chai-promised-plugin is a confirmed malicious npm package (MAL-2026-1682) that executes malicious code on install (malicious version 2.3.5). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in chai-promised-plugin (npm)

MAL-2026-1682

Immediate action

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

npm uninstall chai-promised-plugin

What this malware does

The package chai-promised-plugin was found to contain malicious code.

Malicious versions

1 flagged

2.3.5

Indicators of compromise (SHA-256)

1d795dbd75afa9bdfd9f41e7c9f9ad6d98b647a4b70688d40748ec0b2f13daf3

adcef9446d381cf0eb689e6ca0e6cdec06bae764c2c8c2cfaf83ba73597713b9

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for chai-promised-plugin (version 2.3.5).
If you installed it — respond
Remove chai-promised-plugin 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 chai-promised-plugin 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. chai-promised-plugin on npm has been identified as a malicious package (version 2.3.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01186

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks chai-promised-plugin-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