mal-2026-2299
Vulnerability from ossf_malicious_packages
Published
2026-03-30 12:02
Modified
2026-03-30 12:02
Summary
Malicious code in mnemoniclib (PyPI)
Details
-= Per source details. Do not edit below this line.=-
Source: kam193 (c88fa4e30e2437fef5f03db434adb0f34ee48d8bec2d3361d123b10086b28772)
Clone of a legitimate library with added malicious code that runs during generating a new mnemonic. The malicious code collects data related to cryptocurrency wallets and selected other files, and exfiltrate them to a hardcoded location.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-03-mnemoniclib
Reasons (based on the campaign):
-
clones-real-package
-
action-hidden-in-lib-usage
-
crypto-related
-
exfiltration-crypto
-
files-exfiltration
Credits
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "mnemoniclib"
},
"versions": [
"0.20.1",
"0.21.1",
"0.22.1"
]
}
],
"credits": [
{
"contact": [
"https://github.com/kam193",
"https://bad-packages.kam193.eu/"
],
"name": "Kamil Ma\u0144kowski (kam193)",
"type": "REPORTER"
}
],
"database_specific": {
"iocs": {
"ips": [
"65.21.205.84"
],
"urls": [
"http://65.21.205.84:5000/upload"
]
},
"malicious-packages-origins": [
{
"id": "pypi/2026-03-mnemoniclib/mnemoniclib",
"import_time": "2026-03-30T12:50:52.341613423Z",
"modified_time": "2026-03-30T12:02:35.616053Z",
"sha256": "c88fa4e30e2437fef5f03db434adb0f34ee48d8bec2d3361d123b10086b28772",
"source": "kam193",
"versions": [
"0.20.1",
"0.21.1",
"0.22.1"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (c88fa4e30e2437fef5f03db434adb0f34ee48d8bec2d3361d123b10086b28772)\nClone of a legitimate library with added malicious code that runs during generating a new mnemonic. The malicious code collects data related to cryptocurrency wallets and selected other files, and exfiltrate them to a hardcoded location.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-03-mnemoniclib\n\n\nReasons (based on the campaign):\n\n\n - clones-real-package\n\n\n - action-hidden-in-lib-usage\n\n\n - crypto-related\n\n\n - exfiltration-crypto\n\n\n - files-exfiltration\n",
"id": "MAL-2026-2299",
"modified": "2026-03-30T12:02:35Z",
"published": "2026-03-30T12:02:35Z",
"references": [
{
"type": "WEB",
"url": "https://bad-packages.kam193.eu/pypi/package/mnemoniclib"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in mnemoniclib (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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