MAL-2026-14590

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/yamlformatter-utils/MAL-2026-14590.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-14590
Published
2026-08-28T10:01:36Z
Modified
2026-08-28T10:45:09.984503762Z
Summary
Malicious code in yamlformatter-utils (PyPI)
Details

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

Source: kam193 (ef2cbf7d7c360d11860ea9383a1ed84b491e75361f994359fd97284a5d25cdc2)

During import, the package collects sensitive information and exfiltrates it using DNS queries.

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

Campaign: 2026-08-ekx-report-utils

Reasons (based on the campaign):

  • targetted-attack

  • exfiltration-generic

  • exfiltration-credentials

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "ef2cbf7d7c360d11860ea9383a1ed84b491e75361f994359fd97284a5d25cdc2",
            "id": "pypi/2026-08-ekx-report-utils/yamlformatter-utils",
            "modified_time": "2026-08-28T10:01:50.203858Z",
            "source": "kam193",
            "import_time": "2026-08-28T10:38:59.567163801Z",
            "versions": [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

PyPI / yamlformatter-utils

Package

Name
yamlformatter-utils
View open source insights on deps.dev
Purl
pkg:pypi/yamlformatter-utils

Affected ranges

Affected versions

1.*
1.0.0

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/yamlformatter-utils/MAL-2026-14590.json"