MAL-2026-15516 Malicious code in nx-app (npm)
- Package
- nx-app
- Registry
- npm
What is MAL-2026-15516?
MAL-2026-15516 is a malicious package in nx-app, published on 28 Aug 2026.
Official description
package.json declares its own name nx-app as a dependency whose value is a raw HTTPS URL (https://repo.securityctrl.com/nx-app) rather than a semver range against the npm registry. On npm install, npm fetches a tarball from that URL and runs any lifecycle scripts it contains, with no version pin, no integrity hash, and no signature check. Whoever controls repo.securityctrl.com controls code executed on the installer's machine at install time. The self-referential dependency key (matching the package's own name) is a dependency-confusion shape that forces resolution to the off-registry URL even when a registry-hosted nx-app exists, and the shipped in-tree source is an inert stub so the manifest URL is the sole payload delivery vector.
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.
What should I do about MAL-2026-15516?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.
Sources
Also known as GHSA-h9j7-rx3x-rwhc, GHSA-vmrp-3pwx-mj42.