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Malicious package

chai-as-alignednpm

Advisory published Updated

chai-as-aligned is a confirmed malicious npm package (MAL-2026-2337) that executes malicious code on install (malicious versions 4.7.8, 4.7.9). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in chai-as-aligned (npm)

MAL-2026-2337
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall chai-as-aligned

What this malware does

The package chai-as-aligned was found to contain malicious code.

Malicious versions

2 flagged
4.7.84.7.9

Indicators of compromise (SHA-256)

8938161a108ba782f87ed85655aaeea2a6f7569380dcd41bd1480b17cf5f650f
7bfc79b3c746510178bdaa8e79ecf903f3705e61a09a5846e263159301607f91

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for chai-as-aligned (2 malicious versions).

  2. If you installed it — respond

    Remove chai-as-aligned 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.

  3. Did it already run?

    If chai-as-aligned 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-as-aligned on npm has been identified as a malicious package (versions 4.7.8, 4.7.9 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01715

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks chai-as-aligned-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.

Explore

chai-as-aligned (npm) malicious package — MAL-2026-2337 | O3 Security