MAL-2026-2106

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/dmclc/MAL-2026-2106.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-2106
Published
2026-03-23T14:05:43Z
Modified
2026-03-23T20:32:09.950192Z
Summary
Malicious code in dmclc (PyPI)
Details

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

Source: kam193 (895439e6afba407fb85d315e2c99f0d1434905a1ee72b172e62d55abbb8c93a3)

During installation, the package starts obfuscated code that downloads and runs remote executables in specific environments - in older packages - attempts to exfiltrate some basic information using DNS requests and then likely cover tracks by installing a similarly named package from private repository

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

Campaign: 2026-02-urllib-slim

Reasons (based on the campaign):

  • typosquatting

  • Downloads and executes a remote executable.

  • obfuscation

  • dependency-confusion

Database specific 
{
    "iocs": {
        "domains": [
            "1r.vc",
            "i.1r.vc"
        ],
        "urls": [
            "https://storage.googleapis.com/py-pi/python_mac",
            "https://storage.googleapis.com/py-pi/python_rhel",
            "https://storage.googleapis.com/py-pi/python_win"
        ]
    },
    "malicious-packages-origins": [
        {
            "sha256": "895439e6afba407fb85d315e2c99f0d1434905a1ee72b172e62d55abbb8c93a3",
            "modified_time": "2026-03-23T14:05:43.559439Z",
            "source": "kam193",
            "import_time": "2026-03-23T14:29:23.854372764Z",
            "versions": [
                "2.1.0",
                "2.1.1",
                "2.1.2",
                "2.1.3",
                "2.1.5",
                "2.1.6",
                "2.1.7",
                "2.1.9",
                "2.1.10"
            ],
            "id": "pypi/2026-02-urllib-slim/dmclc"
        },
        {
            "sha256": "29d8ca432d1f2069462955be4a4ea77b5f7c8ee81ec568291be5b0ffce0aeebb",
            "modified_time": "2026-03-23T14:05:43.559439Z",
            "source": "kam193",
            "import_time": "2026-03-23T14:52:56.133313105Z",
            "versions": [
                "2.1.0",
                "2.1.1",
                "2.1.2",
                "2.1.3",
                "2.1.5",
                "2.1.6",
                "2.1.7",
                "2.1.9",
                "2.1.10"
            ],
            "id": "pypi/2026-02-urllib-slim/dmclc"
        },
        {
            "sha256": "98824533b2b8d26131cde65c6fee280bde414c4810f83d56b6b5f59fc7131df5",
            "modified_time": "2026-03-23T14:05:43.559439Z",
            "source": "kam193",
            "import_time": "2026-03-23T20:16:57.84615076Z",
            "versions": [
                "2.1.0",
                "2.1.1",
                "2.1.2",
                "2.1.3",
                "2.1.5",
                "2.1.6",
                "2.1.7",
                "2.1.9",
                "2.1.10"
            ],
            "id": "pypi/2026-02-urllib-slim/dmclc"
        }
    ]
}
References
Credits

Affected packages

PyPI / dmclc

Package

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

Affected ranges

Affected versions

2.*
2.1.0
2.1.1
2.1.2
2.1.3
2.1.5
2.1.6
2.1.7
2.1.9
2.1.10

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/dmclc/MAL-2026-2106.json"