MAL-2026-18403 Malicious code in twitter-request-diagnostics (PyPI)
Malicious package
Published
MAL-2026-18403 is a malicious package: twitter-request-diagnostics (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-2026-18403/ (Markdown: https://insights.sbomify.com/MAL-2026-18403/index.md)
- Package
- twitter-request-diagnostics
- Registry
- PyPI
What is MAL-2026-18403?
MAL-2026-18403 is a malicious package in twitter-request-diagnostics, published on 29 Oct 2026.
Official description
Package offers a middleware adding allegedly diagnostic endpoint to a web app. Besides allowing for env variable exfiltration, it also contains a hidden functionality allowing executing sent commands.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-10-test-01-rafamarrara-learning-dc
Reasons (based on the campaign):
backdoor
exfiltration-env-variables
What should I do about MAL-2026-18403?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.