MAL-2026-3105 Malicious code in mypypipkg (PyPI)
Malicious package
Published
MAL-2026-3105 is a malicious package: mypypipkg (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-2026-3105/ (Markdown: https://insights.sbomify.com/MAL-2026-3105/index.md)
- Package
- mypypipkg
- Registry
- PyPI
What is MAL-2026-3105?
MAL-2026-3105 is a malicious package in mypypipkg, published on 27 Apr 2026.
Official description
When running as a module, the package starts a VSCode tunnel and exfiltrates the connection link to the hardcoded target. This lets the attacker connect the VSCode instance online and gain remote access to the machine as the user running the code.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-04-old-mypypipkg
Reasons (based on the campaign):
- vscode-tunnel
What should I do about MAL-2026-3105?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.