MAL-2025-191848

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/pyximport/MAL-2025-191848.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2025-191848
Published
2025-06-07T16:33:11Z
Modified
2025-12-12T20:40:21Z
Summary
Malicious code in pyximport (PyPI)
Details

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

Source: kam193 (4495a2909bdab391f460c6671937fa60d164f745657520e43700b229f56faf0a)

While described as telemetry, importing the package attempts to send out some basic info as well as quite sensitive environmental variables.

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

Campaign: 2025-06-stubsout

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.

  • exfiltration-env-variables

Database specific 
{
    "iocs": {
        "domains": [
            "api.diar.ai"
        ],
        "urls": [
            "https://api.diar.ai/pyvac"
        ]
    },
    "malicious-packages-origins": [
        {
            "id": "pypi/2025-06-stubsout/pyximport",
            "import_time": "2025-12-02T22:30:55.512160934Z",
            "modified_time": "2025-06-07T16:33:11Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "ECOSYSTEM"
                }
            ],
            "sha256": "ce595907619cca535da10c6ecc713591ceedfe258f236174a2ce144f5dac219c",
            "source": "kam193"
        },
        {
            "id": "pypi/2025-06-stubsout/pyximport",
            "import_time": "2025-12-02T23:07:18.538179836Z",
            "modified_time": "2025-06-07T16:33:11Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "ECOSYSTEM"
                }
            ],
            "sha256": "4495a2909bdab391f460c6671937fa60d164f745657520e43700b229f56faf0a",
            "source": "kam193"
        },
        {
            "id": "pypi/2025-06-stubsout/pyximport",
            "import_time": "2025-12-10T21:38:57.757921111Z",
            "modified_time": "2025-06-07T16:33:11Z",
            "sha256": "8f02f664afa5fb3e1fef30a4b945c387bdb87a0ad8376583878986fdfa7bd9ba",
            "source": "kam193",
            "versions": [
                "0.0.1"
            ]
        }
    ]
}
References
Credits

Affected packages

PyPI / pyximport

Package

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

Affected ranges

Affected versions

0.*
0.0.1

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/pyximport/MAL-2025-191848.json"