mal-2026-2948
Vulnerability from ossf_malicious_packages
Published
2026-04-20 08:39
Modified
2026-04-20 08:39
Summary
Malicious code in leavemealone (PyPI)
Details
-= Per source details. Do not edit below this line.=-
Source: kam193 (5628eb1d01e8eb7de8a582cd9ea85dff68eafde06f4e1164ae92842354db0bf7)
During building the package, it executes encrypted code. The content is unclear as the decryption key bases on the local environment variable. Given leaving a "flag" file at the end, this package can also be part of a CTF-like exercise, but it's not possible to be sure given the encrypted payload.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-04-leavemealone
Reasons (based on the campaign):
- obfuscation
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "leavemealone"
},
"versions": [
"0.1.1",
"0.1.2"
]
}
],
"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/2026-04-leavemealone/leavemealone",
"import_time": "2026-04-20T09:41:09.783192644Z",
"modified_time": "2026-04-20T08:39:35.545786Z",
"sha256": "5628eb1d01e8eb7de8a582cd9ea85dff68eafde06f4e1164ae92842354db0bf7",
"source": "kam193",
"versions": [
"0.1.1",
"0.1.2"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (5628eb1d01e8eb7de8a582cd9ea85dff68eafde06f4e1164ae92842354db0bf7)\nDuring building the package, it executes encrypted code. The content is unclear as the decryption key bases on the local environment variable. Given leaving a \"flag\" file at the end, this package can also be part of a CTF-like exercise, but it\u0027s not possible to be sure given the encrypted payload.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-04-leavemealone\n\n\nReasons (based on the campaign):\n\n\n - obfuscation\n",
"id": "MAL-2026-2948",
"modified": "2026-04-20T08:39:35Z",
"published": "2026-04-20T08:39:35Z",
"references": [
{
"type": "WEB",
"url": "https://bad-packages.kam193.eu/pypi/package/leavemealone"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in leavemealone (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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