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Malicious package

nodemon-eslintnpm

Advisory published Updated

nodemon-eslint is a confirmed malicious npm package (MAL-2026-10514) that executes malicious code on install (malicious version 3.1.13). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in nodemon-eslint (npm)

MAL-2026-10514
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall nodemon-eslint

What this malware does

The package was found to contain malicious code or consuming dependency that contains malicious code

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Malicious versions

1 flagged
3.1.13

Indicators of compromise (SHA-256)

7879df6e354f9a6be92534b33b3eb687a247ff0bc8b6c7e47834c7656b77d0d6
50c506d75221403cde50b724defdd5c71441614ab87b54ff1ffa2a24af89678e

Detection & response playbook

Malicious package
  1. Find it

    Search your lockfiles and build artifacts for nodemon-eslint (version 3.1.13).

  2. If you installed it — respond

    Remove nodemon-eslint 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 nodemon-eslint 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. nodemon-eslint on npm has been identified as a malicious package (version 3.1.13 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

GHSA-v57g-fjf5-426hIN-MAL-2026-010404

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks nodemon-eslint-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

nodemon-eslint (npm) malicious package — MAL-2026-10514 | O3 Security