mal-2026-1433
Vulnerability from ossf_malicious_packages
Published
2026-03-15 09:36
Modified
2026-03-15 09:36
Summary
Malicious code in kvstore-pb2-grpc (PyPI)
Details
-= Per source details. Do not edit below this line.=-
Source: kam193 (7208dedf651be9d1e330692ef042b89e5bcae7e8aeee7f2ab400d49e7a574de8)
During import, package decrypts and runs a malicious executable. The executable is hidden in an encoded and xored form in the JSON resource file.
This is a follow up of the campaign 2026-03-fastapi-middleware-cors
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-03-ariadne-federation
Reasons (based on the campaign):
-
malware
-
obfuscation
-
dependency-confusion
-
typosquatting
Credits
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "kvstore-pb2-grpc"
},
"versions": [
"16.0.0"
]
}
],
"credits": [
{
"contact": [
"https://github.com/kam193",
"https://bad-packages.kam193.eu/"
],
"name": "Kamil Ma\u0144kowski (kam193)",
"type": "REPORTER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "pypi/2026-03-ariadne-federation/kvstore-pb2-grpc",
"import_time": "2026-03-15T10:10:46.362562444Z",
"modified_time": "2026-03-15T09:36:30.05829Z",
"sha256": "7208dedf651be9d1e330692ef042b89e5bcae7e8aeee7f2ab400d49e7a574de8",
"source": "kam193",
"versions": [
"16.0.0"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (7208dedf651be9d1e330692ef042b89e5bcae7e8aeee7f2ab400d49e7a574de8)\nDuring import, package decrypts and runs a malicious executable. The executable is hidden in an encoded and xored form in the JSON resource file.\n\nThis is a follow up of the campaign 2026-03-fastapi-middleware-cors\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-03-ariadne-federation\n\n\nReasons (based on the campaign):\n\n\n - malware\n\n\n - obfuscation\n\n\n - dependency-confusion\n\n\n - typosquatting\n",
"id": "MAL-2026-1433",
"modified": "2026-03-15T09:36:30Z",
"published": "2026-03-15T09:36:30Z",
"references": [
{
"type": "EVIDENCE",
"url": "https://www.virustotal.com/gui/file/609d9adb5afe6fb913b605157a86e484f609b939e6755af4311ac6b824e634e2/detection"
},
{
"type": "WEB",
"url": "https://bad-packages.kam193.eu/pypi/package/kvstore-pb2-grpc"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in kvstore-pb2-grpc (PyPI)"
}
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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.
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