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Malicious package

dotenv-intnpm

Advisory published Updated

dotenv-int is a confirmed malicious npm package (MAL-2026-1711) that executes malicious code on install (malicious version 3.5.5). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in dotenv-int (npm)

MAL-2026-1711
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall dotenv-int

What this malware does

The package dotenv-int was found to contain malicious code.

Malicious versions

1 flagged
3.5.5

Indicators of compromise (SHA-256)

92371211679e4811dce5d678a9b61a3e2aa60e12bc677df717223024954f2ff8
5ff3b8c2dda09766587481490c9be74a1af10a9660698a8f7b8f31a7df47bc96

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for dotenv-int (version 3.5.5).

  2. If you installed it — respond

    Remove dotenv-int 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 dotenv-int 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. dotenv-int on npm has been identified as a malicious package (version 3.5.5 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

RLMA-2026-01252

Credits

  • Amazon Inspector · finder
  • ReversingLabs · finder

Detect & block this

O3 blocks dotenv-int-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

dotenv-int (npm) malicious package — MAL-2026-1711 | O3 Security