MAL-2025-5099

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/c8test/MAL-2025-5099.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2025-5099
Published
2024-07-26T16:53:30Z
Modified
2026-03-19T12:51:29.881056Z
Summary
Malicious code in c8test (PyPI)
Details

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

Source: kam193 (b94beda1abe6cca6b53ac1891e3a3baea95df1b8c260dd9f4ea15998e26391b9)

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": [
        {
            "id": "RLMA-2025-02996",
            "import_time": "2025-06-18T15:05:59.542239823Z",
            "sha256": "16205c7e25e37679811ad0f17c4819981dbb4e36c0cb4aa6a587003fd5b152f1",
            "source": "reversing-labs",
            "modified_time": "2025-06-18T10:15:02Z",
            "versions": [
                "0.0.1",
                "0.0.2",
                "0.0.3"
            ]
        },
        {
            "id": "pypi/GENERIC-standard-pypi-install-pentest/c8test",
            "ranges": [
                {
                    "type": "ECOSYSTEM",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "import_time": "2025-12-02T22:30:55.921767069Z",
            "sha256": "867c8da2c1a89ddba6aa78c7149bab716bf6500fa707888026657f471bc3353a",
            "source": "kam193",
            "modified_time": "2024-07-26T16:53:30Z"
        },
        {
            "id": "pypi/GENERIC-standard-pypi-install-pentest/c8test",
            "ranges": [
                {
                    "type": "ECOSYSTEM",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "import_time": "2025-12-02T23:07:19.113533727Z",
            "sha256": "b94beda1abe6cca6b53ac1891e3a3baea95df1b8c260dd9f4ea15998e26391b9",
            "source": "kam193",
            "modified_time": "2024-07-26T16:53:30Z"
        },
        {
            "id": "pypi/GENERIC-standard-pypi-install-pentest/c8test",
            "import_time": "2025-12-10T21:38:58.245279525Z",
            "sha256": "0cd4c9d820b432a67a17625f9216b5108646ea5529a20356f5dc71b434c58447",
            "source": "kam193",
            "modified_time": "2024-07-26T16:53:30Z",
            "versions": [
                "0.0.3",
                "0.0.2",
                "0.0.1"
            ]
        },
        {
            "id": "pypi/GENERIC-standard-pypi-install-pentest/c8test",
            "import_time": "2025-12-30T22:39:04.270988203Z",
            "sha256": "cd35f8b9677dc41a9b173444dc9ea9bbfe97e16be503a30d9ec16d08bfd1276a",
            "source": "kam193",
            "modified_time": "2024-07-26T16:53:30Z",
            "versions": [
                "0.0.1",
                "0.0.2",
                "0.0.3"
            ]
        },
        {
            "id": "RLUA-2026-00175",
            "import_time": "2026-03-19T12:19:32.191649289Z",
            "sha256": "1e9004346c91109cc4292bae9c651f18cdc06b3472bd50ecf8f450e1daa97a84",
            "source": "reversing-labs",
            "modified_time": "2026-03-18T12:12:13Z"
        }
    ]
}
References
Credits

Affected packages

PyPI / c8test

Package

Name
c8test
View open source insights on deps.dev
Purl
pkg:pypi/c8test

Affected ranges

Affected versions

0.*
0.0.1
0.0.2
0.0.3

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/c8test/MAL-2025-5099.json"