MAL-2026-2170
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: kam193 (c76439565a70fd014098388baf5dd9a679f90be992102ba689fc0b7d6d3db352)
Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.
Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.
Campaign: GENERIC-standard-pypi-install-pentest
Reasons (based on the campaign):
-
The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.
-
The package overrides the install command in setup.py to execute malicious code during installation.
Source: ossf-package-analysis (335b61ea467900506b7c9ab231d39902730c0c23c3b48c9292fd137ddd5d107c)
The OpenSSF Package Analysis project identified 'fairness-bias' @ 99.0.0 (pypi) as malicious.
It is considered malicious because:
- The package communicates with a domain associated with malicious activity.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "fairness-bias"
},
"versions": [
"99.0.0"
]
}
],
"credits": [
{
"contact": [
"https://github.com/kam193",
"https://bad-packages.kam193.eu/"
],
"name": "Kamil Ma\u0144kowski (kam193)",
"type": "REPORTER"
},
{
"contact": [
"https://github.com/ossf/package-analysis",
"https://openssf.slack.com/channels/package_analysis"
],
"name": "OpenSSF: Package Analysis",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"import_time": "2026-03-25T05:08:01.309908366Z",
"modified_time": "2026-03-25T05:05:53Z",
"sha256": "335b61ea467900506b7c9ab231d39902730c0c23c3b48c9292fd137ddd5d107c",
"source": "ossf-package-analysis",
"versions": [
"99.0.0"
]
},
{
"id": "pypi/GENERIC-standard-pypi-install-pentest/fairness-bias",
"import_time": "2026-03-25T05:52:35.049677585Z",
"modified_time": "2026-03-25T05:07:03.893401Z",
"sha256": "c76439565a70fd014098388baf5dd9a679f90be992102ba689fc0b7d6d3db352",
"source": "kam193",
"versions": [
"99.0.0"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (c76439565a70fd014098388baf5dd9a679f90be992102ba689fc0b7d6d3db352)\nInstalling the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.\n\n\n---\n\nCategory: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research \u0026 co, with clearly low-harm possibilities.\n\n\nCampaign: GENERIC-standard-pypi-install-pentest\n\n\nReasons (based on the campaign):\n\n\n - The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.\n\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n\n## Source: ossf-package-analysis (335b61ea467900506b7c9ab231d39902730c0c23c3b48c9292fd137ddd5d107c)\nThe OpenSSF Package Analysis project identified \u0027fairness-bias\u0027 @ 99.0.0 (pypi) as malicious.\n\nIt is considered malicious because:\n\n- The package communicates with a domain associated with malicious activity.\n",
"id": "MAL-2026-2170",
"modified": "2026-03-25T05:54:06Z",
"published": "2026-03-25T05:05:53Z",
"references": [
{
"type": "WEB",
"url": "https://bad-packages.kam193.eu/pypi/package/fairness-bias"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in fairness-bias (PyPI)"
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.