MAL-2026-5086 Malicious code in polymarket-data (PyPI)
Malicious package
Published
MAL-2026-5086 is a malicious package: polymarket-data (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-2026-5086/ (Markdown: https://insights.sbomify.com/MAL-2026-5086/index.md)
- Package
- polymarket-data
- Registry
- PyPI
What is MAL-2026-5086?
MAL-2026-5086 is a malicious package in polymarket-data, published on 30 May 2026.
Official description
The package attempts to exfiltrate sensitive data related to cryptocurrencies and API keys, as well as establish persistence. Likely related to 2026-05-polymarket-data-fetcher.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-05-polymarket-data
Reasons (based on the campaign):
crypto-related
exfiltration-crypto
exfiltration-credentials
persistence
What should I do about MAL-2026-5086?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.