MAL-2026-18292 Malicious code in event-bus-lite-testmetest (npm)
Malicious package
Published
MAL-2026-18292 is a malicious package: event-bus-lite-testmetest (npm). Every version was published to cause harm.
Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.
Reference: https://insights.sbomify.com/MAL-2026-18292/ (Markdown: https://insights.sbomify.com/MAL-2026-18292/index.md)
- Package
- event-bus-lite-testmetest
- Registry
- npm
What is MAL-2026-18292?
MAL-2026-18292 is a malicious package in event-bus-lite-testmetest, published on 25 Oct 2026.
Official description
The package ships a binding.gyp whose target has type "none" and no C/C++ source files; its only purpose is a GYP
<!(...) command-expansion that runs node index.js during the automatic node-gyp rebuild triggered by npm install. index.js is multi-layer obfuscated: a char-code array is Caesar-decoded (shift 21) and passed to eval; the decoded body reads the bundled lib_native.dat (~312 KB, high-entropy, sha256 e1ab1e330d3db532d511d4af4386ab2d2c6245ca807410f51c1211ae48814d73), brotli-decompresses and AES-128-GCM-decrypts it with hardcoded key/IV/AAD, writes the plaintext to a mkdtempSync('.b-')/index.js temp path, and spawns the Bun runtime (Bun.spawn, or getBunPath() via child_process.spawn) to execute the decrypted payload. Executing under Bun bypasses Node-only analysis. The contents of the executed payload are not inspectable from the shipped artifact.What should I do about MAL-2026-18292?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.