MAL-2026-18771

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/extrahtml/MAL-2026-18771.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18771
Published
2026-11-08T21:47:19Z
Modified
2026-11-08T22:45:03Z
Summary
Malicious code in extrahtml (PyPI)
Details

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

Source: kam193 (f004357dd044b3c2c644a1f759dcd47a154a37533635280af0f3b5adb76469a4)

In this campaign, remote code is executed via a dependency pretending to be a YAML loader but embedding a special loader executing code from a provided file. During analysis, the code was just a stub.

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

Campaign: 2026-11-parseyaml

Reasons (based on the campaign):

  • The malicious code is intentionally included in a dependency of the package

  • Downloads and executes a remote malicious script.

Database specific 
{
    "iocs": {
        "urls": [
            "https://plainraw.com/raw/99b69bda4246"
        ]
    },
    "malicious-packages-origins": [
        {
            "id": "pypi/2026-11-parseyaml/extrahtml",
            "import_time": "2026-11-08T22:36:34.67802616Z",
            "modified_time": "2026-11-08T21:47:19.212233Z",
            "sha256": "f004357dd044b3c2c644a1f759dcd47a154a37533635280af0f3b5adb76469a4",
            "source": "kam193",
            "versions": [
                "0.1.0",
                "0.1.1",
                "0.1.2"
            ]
        }
    ]
}
References
Credits

Affected packages

PyPI / extrahtml

Package

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

Affected ranges

Affected versions

0.*
0.1.0
0.1.1
0.1.2

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/extrahtml/MAL-2026-18771.json"