MAL-2026-4837

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/my-test-package-2025-xyz/MAL-2026-4837.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4837
Published
2026-05-28T11:13:18Z
Modified
2026-05-28T12:15:57.640460299Z
Summary
Malicious code in my-test-package-2025-xyz (PyPI)
Details

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

Source: kam193 (a2f3ab0a3c7ef9009c99575d9dd051c4a97575435cabf5d3a4c223f53bc47b89)

During installation, the package opens a reverse shell

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

Campaign: 2026-05-my-test-package-2025-xyz

Reasons (based on the campaign):

  • The package contains code to create a reverse shell, allowing an attacker to execute any commands on the victim's machine.

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

Database specific 
{
    "malicious-packages-origins": [
        {
            "versions": [
                "1.0.1"
            ],
            "sha256": "a2f3ab0a3c7ef9009c99575d9dd051c4a97575435cabf5d3a4c223f53bc47b89",
            "modified_time": "2026-05-28T11:13:18.707448Z",
            "id": "pypi/2026-05-my-test-package-2025-xyz/my-test-package-2025-xyz",
            "source": "kam193",
            "import_time": "2026-05-28T12:11:18.757116053Z"
        }
    ]
}
References
Credits

Affected packages

PyPI / my-test-package-2025-xyz

Package

Name
my-test-package-2025-xyz
View open source insights on deps.dev
Purl
pkg:pypi/my-test-package-2025-xyz

Affected ranges

Affected versions

1.*
1.0.1

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/my-test-package-2025-xyz/MAL-2026-4837.json"