MAL-2026-1222 Malicious code in optimal-spark-config (PyPI)
Malicious package
Published
MAL-2026-1222 is a malicious package: optimal-spark-config (PyPI). 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-2026-1222/ (Markdown: https://insights.sbomify.com/MAL-2026-1222/index.md)
- Package
- optimal-spark-config
- Registry
- PyPI
What is MAL-2026-1222?
MAL-2026-1222 is a malicious package in optimal-spark-config, published on 3 Mar 2026.
Official description
During installation, the package starts obfuscated code that attempts to exfiltrate some basic information using DNS requests and then likely cover tracks by installing a similarly named package from private repository
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-02-urllib-slim
Reasons (based on the campaign):
typosquatting
Downloads and executes a remote executable.
obfuscation
dependency-confusion
What should I do about MAL-2026-1222?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.