mal-2025-41790
Vulnerability from ossf_malicious_packages
Published
2025-08-02 16:21
Modified
2025-12-11 09:27
Summary
Malicious code in tsesyx (PyPI)
Details
-= Per source details. Do not edit below this line.=-
Source: kam193 (7c8ea2b8c69693d4bd40c7c4b952878565e3bfaa6eb0ea02ab6ef9ca18eadea8)
When imported, the package attempts to exfiltrate environment variables and basic user info
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2025-07-triple-equals
Reasons (based on the campaign):
-
exfiltration-env-variables
-
The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.
Credits
ReversingLabs
www.reversinglabs.com
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "tsesyx",
"purl": "pkg:pypi/tsesyx"
},
"versions": [
"10.0.5"
]
}
],
"credits": [
{
"contact": [
"https://github.com/kam193",
"https://bad-packages.kam193.eu/"
],
"name": "Kamil Ma\u0144kowski (kam193)"
},
{
"contact": [
"https://github.com/kam193",
"https://bad-packages.kam193.eu/"
],
"name": "Kamil Ma\u0144kowski (kam193)",
"type": "REPORTER"
},
{
"contact": [
"https://www.reversinglabs.com"
],
"name": "ReversingLabs",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "RLMA-2025-04288",
"import_time": "2025-08-29T06:41:56.589423443Z",
"modified_time": "2025-08-28T07:12:10Z",
"sha256": "980a9a77c128d2ed5a54b014dc0080c745e74f7d3aba31ad4542585a71244cae",
"source": "reversing-labs",
"versions": [
"10.0.5"
]
},
{
"id": "pypi/2025-07-triple-equals/tsesyx",
"import_time": "2025-12-02T22:30:55.685469872Z",
"modified_time": "2025-08-02T16:21:06.966508Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"sha256": "884383ef26c14f8a606374b70c24361b5cdf26da20b5723e55c824c85d49770b",
"source": "kam193"
},
{
"id": "pypi/2025-07-triple-equals/tsesyx",
"import_time": "2025-12-02T23:07:18.731782625Z",
"modified_time": "2025-08-02T16:21:06.966508Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"sha256": "7c8ea2b8c69693d4bd40c7c4b952878565e3bfaa6eb0ea02ab6ef9ca18eadea8",
"source": "kam193"
},
{
"id": "pypi/2025-07-triple-equals/tsesyx",
"import_time": "2025-12-10T21:38:57.903737376Z",
"modified_time": "2025-08-02T16:21:06.966508Z",
"sha256": "79c93ef0d721adb368d09b9fb1e00653d06458626bc90f5cf8d911e189373c74",
"source": "kam193",
"versions": [
"10.0.5"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (7c8ea2b8c69693d4bd40c7c4b952878565e3bfaa6eb0ea02ab6ef9ca18eadea8)\nWhen imported, the package attempts to exfiltrate environment variables and basic user info\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2025-07-triple-equals\n\n\nReasons (based on the campaign):\n\n\n - exfiltration-env-variables\n\n\n - The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.\n",
"id": "MAL-2025-41790",
"modified": "2025-12-11T09:27:54Z",
"published": "2025-08-02T16:21:06Z",
"references": [
{
"type": "WEB",
"url": "https://bad-packages.kam193.eu/pypi/package/tsesyx"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in tsesyx (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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