MAL-2026-877

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/arrayvec/MAL-2026-877.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-877
Published
2026-02-13T10:27:10Z
Modified
2026-02-13T12:31:48.846145Z
Summary
Malicious code in arrayvec (PyPI)
Details

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

Source: kam193 (39346af7e82bdb4aa8dca53b864258b9ffe328ea982aa3009b62b84d174ebe29)

Installing the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.

Category: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.

Campaign: GENERIC-standard-pypi-install-pentest

Reasons (based on the campaign):

  • The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.

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

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-02-13T11:15:46.0873952Z",
            "modified_time": "2026-02-13T10:27:10.932051Z",
            "source": "kam193",
            "sha256": "39346af7e82bdb4aa8dca53b864258b9ffe328ea982aa3009b62b84d174ebe29",
            "id": "pypi/GENERIC-standard-pypi-install-pentest/arrayvec",
            "versions": [
                "1.0.99"
            ]
        }
    ]
}
References
Credits

Affected packages

PyPI / arrayvec

Package

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

Affected ranges

Affected versions

1.*
1.0.99

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/arrayvec/MAL-2026-877.json"