MAL-2026-17336 Malicious code in @redman89405/my-module (npm)

The package ships code.png alongside index.js and exports a function imageToCode that reads a length-prefixed byte stream from the first pixel row of the PNG and passes the decoded string to Function(...)(), an eval-equivalent sink. The executable content is hidden inside an image asset rather than present as readable source, so the code that will run cannot be seen by inspecting the npm tarball. The API is exported alongside trivial hello/add helpers with no documented purpose for image-based code loading, and the author retains the ability to change the payload in future publishes without any visible source diff. The code path relies on browser-only globals (Image, canvas) so it does not fire on Node require; harm requires a consumer application to call imageToCode in a browser context, at which point arbitrary author-supplied JavaScript executes in that page.

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.