MalwarePublished 13 Jul 2026

nodemon-web (npm) · Malicious Code

Affects nodemon-webSource GCVE Database

Malicious package : remove nodemon-web and rotate any secrets on hosts that installed it.

Data as of 14 Jul 2026, 09:46 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-10515

What to do

Remove nodemon-web from every project, lockfile and image that pulls it in. Treat any host that installed it as compromised: rotate the credentials, tokens and keys it could read, from a clean machine.

Affected software

Product	Affected	Fixed in
npmnodemon-web	Affected =3.1.13	Fixed in–

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Description

The nodemon-web package on npm is a malicious clone of the legitimate nodemon package. It impersonates the original author and repository metadata but introduces a hidden dependency on type-swap, which is not used by the package itself. Installing nodemon-web results in the silent installation of potentially malicious third-party code. Systems with this package installed should be considered fully compromised, and all stored secrets and keys must be rotated immediately. Removal of the package alone may not fully remediate the compromise.

Impact

Any computer with nodemon-web version 3.1.13 installed or running is considered fully compromised. Attackers may have gained full control, potentially accessing all stored secrets and keys. Simply removing the package does not guarantee removal of all malicious artifacts or backdoors introduced by the package. This poses a severe risk to confidentiality, integrity, and availability of affected systems.

Defensive guidance

Remove the nodemon-web package immediately. Rotate all secrets, credentials, and keys stored on the affected system from a separate, trusted environment. Conduct a thorough investigation and remediation of the compromised system, as removal of the package alone may not eliminate all malicious components. Avoid installing packages with suspicious metadata or from untrusted sources. Monitor for any signs of persistent compromise.

Summary

nodemon-web is a malicious npm package that copies the source code and metadata of the legitimate nodemon package to impersonate it. It adds a runtime dependency on type-swap@^3.1.3, which is not required or imported by the package, thereby introducing unauthorized third-party code into the consumer's environment. This behavior indicates a supply chain attack aiming to execute malicious code under the guise of a trusted package. The package version 3.1.13 is affected. The presence of this package on a system implies full compromise, necessitating immediate secret rotation and comprehensive remediation.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 14 Jul 2026, 09:46 UTC

Technical details

References

Community reviews