MAL-2026-3131

See a problem?

Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/kcvlib/MAL-2026-3131.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2026-3131

Published

2026-04-28T17:24:08Z

Modified

2026-04-28T18:17:00.087783Z

Summary

Malicious code in kcvlib (PyPI)

Details

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

Source: kam193 (4a441a8e0abdd54964ca9e0a5e3a1d0e0c0435f05d80ab9e9210e10194a16f3d)

During import, the package downloads and executes obfuscated code. It appears to be an infostealer framework

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

Campaign: 2026-04-kcvlib

Reasons (based on the campaign):

obfuscation
Downloads and executes a remote malicious script.
infostealer

Database specific

{
    "iocs": {
        "urls": [
            "https://raw.githubusercontent.com/ovrlust/cookie-library/main/kcvlib_core.py"
        ]
    },
    "malicious-packages-origins": [
        {
            "source": "kam193",
            "modified_time": "2026-04-28T17:24:08.983645Z",
            "sha256": "4a441a8e0abdd54964ca9e0a5e3a1d0e0c0435f05d80ab9e9210e10194a16f3d",
            "import_time": "2026-04-28T18:03:33.623587036Z",
            "versions": [
                "1.0.0",
                "1.0.1",
                "1.1.0",
                "1.2.0",
                "1.2.1",
                "1.3.0",
                "1.4.0"
            ],
            "id": "pypi/2026-04-kcvlib/kcvlib"
        }
    ]
}

References

Credits

- Kamil Mańkowski (kam193) - REPORTER
- - https://github.com/kam193
  - https://bad-packages.kam193.eu/

Affected packages

PyPI / kcvlib

Package

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

Affected ranges

Affected versions

1.*

1.0.0

1.0.1

1.1.0

1.2.0

1.2.1

1.3.0

1.4.0

Database specific

source

"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/kcvlib/MAL-2026-3131.json"