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Malicious package

nodemon-webnpm

Advisory published Updated

nodemon-web is a confirmed malicious npm package (MAL-2026-10515) that typosquats a legitimate package to trick installs (malicious version 3.1.13). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in nodemon-web (npm)

MAL-2026-10515
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall nodemon-web

What this malware does

nodemon-web copies the source of the popular nodemon package verbatim and reuses Remy Sharp's author metadata and the https://github.com/remy/nodemon.git repository URL, while publishing under a lookalike name from an unrelated account. package.json declares a runtime dependency on type-swap@^3.1.3 that is not required or imported anywhere in the package's own code; the real nodemon has no such dependency. Installing nodemon-web therefore silently resolves and installs type-swap into the consumer's node_modules under cover of a familiar name and impersonated maintainer identity, adding third-party code to the installer's dependency tree that the package itself never uses.

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)

51bd26eeac93c4079c1efdfb78bbdc0b7a64d487109bb1faea4d8f2b982dbff8
c3f5aa35dd34f3c1d075d6ebee3f25a0445780f6f2c78d55a958868e530fe315

Detection & response playbook

Typosquat
  1. Find it

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

  2. If you installed it — respond

    nodemon-web is a typosquat — you almost certainly intended a legitimately-named package. Remove nodemon-web, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.

  3. Did it already run?

    If nodemon-web 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-web 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-62c9-p25c-7xxmIN-MAL-2026-010356

References

Credits

  • Amazon Inspector · finder

Detect & block this

O3 blocks nodemon-web-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-web (npm) malicious package — MAL-2026-10515 | O3 Security