MAL-2026-13619

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/atlas-internal/MAL-2026-13619.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13619
Published
2026-08-07T16:03:42Z
Modified
2026-08-07T17:04:54.694236250Z
Summary
Malicious code in atlas-internal (PyPI)
Details

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

Source: amazon-inspector (cdd4a17504623add1ff4f374ea9c2283d1eb5a863265e012592142b169cd9d90)

setup.py overrides the egg_info command to execute automatically during pip install. The overridden command collects the installer's hostname, current working directory, and OS username, URL-encodes them, and sends them via an HTTP GET request to a hardcoded Interactsh out-of-band callback subdomain at fpvbsifkklbmklusmxby2405wa7x7x5bf.oast.fun. This fires on default install without user interaction and leaks installer host identifiers to an attacker-controlled OOB server, consistent with a dependency-confusion reconnaissance beacon.

Source: kam193 (e41b6a5ae4af745c6bc5b2514fa7202d95242ef71a60a57f130524ccfddc99da)

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.

Database specific 
{
    "malicious-packages-origins": [
        {
            "versions": [
                "1.8.1"
            ],
            "id": "IN-MAL-2026-017105",
            "import_time": "2026-08-07T16:51:13.974617548Z",
            "modified_time": "2026-08-07T16:27:49Z",
            "source": "amazon-inspector",
            "sha256": "cdd4a17504623add1ff4f374ea9c2283d1eb5a863265e012592142b169cd9d90"
        },
        {
            "modified_time": "2026-08-07T16:03:42.157607Z",
            "id": "pypi/GENERIC-standard-pypi-install-pentest/atlas-internal",
            "import_time": "2026-08-07T16:51:18.188754135Z",
            "versions": [
                "1.8.1"
            ],
            "source": "kam193",
            "sha256": "e41b6a5ae4af745c6bc5b2514fa7202d95242ef71a60a57f130524ccfddc99da"
        }
    ]
}
References
Credits

Affected packages

PyPI / atlas-internal

Package

Name
atlas-internal
View open source insights on deps.dev
Purl
pkg:pypi/atlas-internal

Affected ranges

Affected versions

1.*
1.8.1

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/atlas-internal/MAL-2026-13619.json"
indicators 
{
    "package_integrity": [
        {
            "filename": "atlas_internal-1.8.1-py3-none-any.whl",
            "hashes": {
                "blake2b_256": "4376c20ea4b1823b5d77b55dbbc5b9ddb6c16ab003f5c9154e3fc7de091f4982",
                "md5": "8ee2b458d841e8a202a01bf8bfb6b3e4",
                "sha256": "688feee86baf582e6ce0f852101bae94be9f25b6bc0bf141dc17201f43ea3f2b"
            }
        },
        {
            "filename": "atlas_internal-1.8.1.tar.gz",
            "hashes": {
                "blake2b_256": "96485a8ffb3f54ede4f85ea03f5deb2300e9add9c41c21a31d396e621ab14e7f",
                "md5": "3683874bfbedd6fc742db8b59870d4ae",
                "sha256": "fdbfb8e17aa35d24d345b5f208053ed90e1aaf194987f2951f1add4ab1a042b5"
            }
        }
    ],
    "evidence_files": [
        {
            "path": "setup.py",
            "tlsh": "df11ce22c83b9467a18751a8480b157a2b75aa533e80f6b5787c37142f8e23cc8b69b5",
            "sha256": "424d7fea62a5f0ae9e4c02a42b1fd4fe99adfd98b9d58be8cf1f0d2ea8d7d050"
        }
    ]
}