MalwarePublished 8 Jun 2026Updated 8 Jul 2026

nodemon-lint (npm) · Malicious Code

Affects nodemon-lintSource GCVE Database

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

Data as of 9 Jul 2026, 09:53 UTC

Classification

Malicious package

Published to npm · OSV MAL-2026-5309

What to do

Remove nodemon-lint 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-lint	Affected =3.1.15	Fixed in–

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Description

The npm package 'nodemon-lint' version 3.1.15 is a malicious package masquerading as the legitimate 'nodemon' package. It copies the legitimate nodemon's code and metadata but adds unused runtime dependencies that may contain malicious code. Installing this package can lead to a full compromise of the affected system, potentially exposing all stored secrets and keys. Immediate removal and secret rotation are strongly advised.

Impact

Systems with 'nodemon-lint' version 3.1.15 installed are considered fully compromised. Attackers may gain full control over the affected system, potentially accessing and exfiltrating all secrets and keys stored on the machine. Removal of the package alone does not guarantee elimination of all malicious software installed as a result of this compromise.

Defensive guidance

Remove the 'nodemon-lint' package immediately if installed. Rotate all secrets and keys stored on the compromised system from a separate, trusted machine. Because full system compromise is possible, further forensic analysis and remediation may be necessary.

Summary

The 'nodemon-lint' package (version 3.1.15) is a malicious npm package that impersonates the legitimate 'nodemon' package by copying its package.json, README, binary name, homepage, and source tree. It introduces two runtime dependencies ('regexp-ts@^2.1.7' and 'chai@^4.4.1') that are not used by the legitimate nodemon and are not required in the code, suggesting these dependencies serve as a delivery mechanism for malicious payloads. Although the tarball itself contains legitimate nodemon code, the transitive dependencies pulled in by npm may contain malicious content. The package should be considered fully compromising any system where it is installed, with potential full control given to an attacker.

References

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What to do

Affected software

Description

AI analysisMachine-generated, updated 9 Jul 2026, 09:53 UTC

Technical details

References

Community reviews