Which versions of chain-promised-cli are malicious?

The following npm versions of chain-promised-cli are flagged malicious: 3.3.5. Treat any of these as compromised.

How do I remediate chain-promised-cli if I installed it?

Remove chain-promised-cli 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 chain-promised-cli — how do I know if it already compromised me?

If chain-promised-cli 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 chain-promised-cli part of a known attack campaign?

Yes — chain-promised-cli is associated with the RLMA-2026-01204 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 chain-promised-cli across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for chain-promised-cli (version 3.3.5).

Malicious package

chain-promised-clinpm

Advisory published Mar 18, 2026Updated Mar 23, 2026

chain-promised-cli is a confirmed malicious npm package (MAL-2026-1690) that executes malicious code on install (malicious version 3.3.5). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in chain-promised-cli (npm)

MAL-2026-1690

Immediate action

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

npm uninstall chain-promised-cli

What this malware does

The package chain-promised-cli was found to contain malicious code.

Malicious versions

1 flagged

3.3.5

Indicators of compromise (SHA-256)

27b204fa24e2fa05522d2d81512c66917288fbb4a92ca3c58dda064f411792db

905259914ab893ce8ca6d455af186ca553bb76d253657ea9f38457798519c708

Detection & response playbook

Malicious package

Find it
Search your lockfiles and build artifacts for chain-promised-cli (version 3.3.5).
If you installed it — respond
Remove chain-promised-cli 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 chain-promised-cli 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. chain-promised-cli on npm has been identified as a malicious package (version 3.3.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01204

Credits

Amazon Inspector · finder
ReversingLabs · finder

Detect & block this

O3 blocks chain-promised-cli-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