MAL-2026-2020 Malicious code in aiolrucache (PyPI)
Malicious package
Published
MAL-2026-2020 is a malicious package: aiolrucache (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-2026-2020/ (Markdown: https://insights.sbomify.com/MAL-2026-2020/index.md)
- Package
- aiolrucache
- Registry
- PyPI
What is MAL-2026-2020?
MAL-2026-2020 is a malicious package in aiolrucache, published on 21 Mar 2026.
Official description
The package masquerades as a utility, but during import, code loads obfuscated modules with RAT- and spyware-like functionality, including: exfiltrating files, executing remote code, taking screenshots, monitoring and exfiltrating the clipboard content. Malicious code is controlled via Discord.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-03-aiolrucache
Reasons (based on the campaign):
rat
spyware-like
keylogger
clipboard-stealing
obfuscation
files-exfiltration
What should I do about MAL-2026-2020?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.