MAL-2026-4166

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/tarpackage/MAL-2026-4166.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4166
Published
2026-05-19T09:26:44Z
Modified
2026-05-19T11:01:39.301667291Z
Summary
Malicious code in tarpackage (PyPI)
Details

-= Per source details. Do not edit below this line.=-

Source: kam193 (32df873f7d91846104a4637b94b2816fea2023260d81c2ecbc5f3c6d5b6a934a)

The package exfiltrates env variables during installation

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-05-tarpackage

Reasons (based on the campaign):

  • The package overrides the install command in setup.py to execute malicious code during installation.

  • exfiltration-env-variables

Database specific 
{
    "iocs": {
        "ips": [
            "82.98.144.242"
        ],
        "urls": [
            "http://82.98.144.242:10443/tarpackage"
        ]
    },
    "malicious-packages-origins": [
        {
            "sha256": "32df873f7d91846104a4637b94b2816fea2023260d81c2ecbc5f3c6d5b6a934a",
            "modified_time": "2026-05-19T09:26:44.605498Z",
            "import_time": "2026-05-19T10:43:24.118520895Z",
            "versions": [
                "1.0.0"
            ],
            "id": "pypi/2026-05-tarpackage/tarpackage",
            "source": "kam193"
        }
    ]
}
References
Credits

Affected packages

PyPI / tarpackage

Package

Name
tarpackage
View open source insights on deps.dev
Purl
pkg:pypi/tarpackage

Affected ranges

Affected versions

1.*
1.0.0

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/tarpackage/MAL-2026-4166.json"