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Part of a larger attack: @emerald-react published 20 malicious packages. See the full campaign →
Malicious package

@emerald-react/autocompletenpm

Advisory published Updated

@emerald-react/autocomplete is a confirmed malicious npm package (MAL-2026-1597) that executes malicious code on install (malicious versions 999.999.999, 9999.9999.9999). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in @emerald-react/autocomplete (npm)

MAL-2026-1597
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall @emerald-react/autocomplete

What this malware does

The package @emerald-react/autocomplete was found to contain malicious code.

Malicious versions

2 flagged
999.999.9999999.9999.9999

Indicators of compromise (SHA-256)

738e4049ed7fd0f1267d8b984c31bc94621c00eafd6a8600c351e03551888d6a
f3769d592953bbc58c010ccd6832a0c93aa4464e302e8ed7214df4bd5be7c030

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for @emerald-react/autocomplete (2 malicious versions).

  2. If you installed it — respond

    Remove @emerald-react/autocomplete 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 @emerald-react/autocomplete 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. @emerald-react/autocomplete on npm has been identified as a malicious package (versions 999.999.999, 9999.9999.9999 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-00979

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks @emerald-react/autocomplete-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

@emerald-react/autocomplete (npm) malicious package — MAL-2026-1597 | O3 Security