MAL-2026-4353

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/mistral-workflows/MAL-2026-4353.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4353
Published
2026-05-26T02:36:25Z
Modified
2026-05-26T05:01:41.041755692Z
Summary
Malicious code in mistral-workflows (PyPI)
Details

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

Source: kam193 (845e7d9c00baa23350d566fee80621733db4faa141eea3f1f983d86b15fb020a)

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.

Source: ossf-package-analysis (2405ec707eccd7e46ec437a3fa08633b5040d65a8e0afd9c308566548f4207c4)

The OpenSSF Package Analysis project identified 'mistral-workflows' @ 999.0.0 (pypi) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.
Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-05-26T02:36:25Z",
            "versions": [
                "999.0.0"
            ],
            "sha256": "2405ec707eccd7e46ec437a3fa08633b5040d65a8e0afd9c308566548f4207c4",
            "source": "ossf-package-analysis",
            "import_time": "2026-05-26T03:14:17.617054096Z"
        },
        {
            "import_time": "2026-05-26T04:53:39.950505114Z",
            "versions": [
                "999.0.0"
            ],
            "sha256": "845e7d9c00baa23350d566fee80621733db4faa141eea3f1f983d86b15fb020a",
            "id": "pypi/GENERIC-standard-pypi-install-pentest/mistral-workflows",
            "source": "kam193",
            "modified_time": "2026-05-26T03:31:09.231779Z"
        }
    ]
}
References
Credits

Affected packages

PyPI / mistral-workflows

Package

Name
mistral-workflows
View open source insights on deps.dev
Purl
pkg:pypi/mistral-workflows

Affected ranges

Affected versions

999.*
999.0.0

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/mistral-workflows/MAL-2026-4353.json"