MAL-2026-10636 Malicious code in leviosa86-test (npm)
Malicious package
Published
MAL-2026-10636 is a malicious package: leviosa86-test (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-2026-10636/ (Markdown: https://insights.sbomify.com/MAL-2026-10636/index.md)
- Package
- leviosa86-test
- Registry
- npm
What is MAL-2026-10636?
MAL-2026-10636 is a malicious package in leviosa86-test, published on 15 Jul 2026.
Official description
[email protected] ships src/poc/index.js which uses child_process.exec to run a shell pipeline that collects host reconnaissance data (hostname, current working directory, whoami, a package identifier) and the public egress IP fetched from https://ifconfig.me, concatenates the values, and exfiltrates them via nslookup as a subdomain label of d9bd62bu6g119svvav70o3p9tymtrxkoj.oast.site — an Interactsh (project-discovery) out-of-band callback domain. The generic package name combined with the anomalous 4.999.0 version bump is the canonical dependency-confusion research/attack shape, where a high version number is published to a public registry to override a private internal package and cause the recon payload to fire in the victim's build.
What should I do about MAL-2026-10636?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.