MAL-2026-13487

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/flasq/MAL-2026-13487.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13487
Published
2026-08-07T07:01:59Z
Modified
2026-08-07T12:35:24.775872532Z
Summary
Malicious code in flasq (PyPI)
Details

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

Source: amazon-inspector (79bdf17d9c07586ddc0b7121037c2c10019d7be01d2dd49685680a8e876342c6)

setup.py registers a custom install cmdclass whose post-install hook is stored as a base64-encoded blob and decoded+exec'd at install time. On Linux, the decoded hook uses urllib.request.urlretrieve to download a binary from https://github.com/totti2188/8gp1Q7iZD3h4VW/releases/download/v1.3A/something, writes it to /tmp/something, chmods it 0755, and spawns it detached via subprocess.Popen(..., startnewsession=True). The download source is an unrelated personal GitHub account; there is no hash or signature verification; and the base64-obfuscation of an install-time code path is an evasion signal. The package advertises itself as 'HTTP client utilities' — this behavior is unrelated to that purpose. The setup.py also defaults the published PyPI name to 'requestss' (name=os.environ.get('PYPIPACKAGENAME', 'requestss')), a one-character typosquat of the popular 'requests' package, indicating the artifact is intended to reach developers mistyping 'requests'.

Source: kam193 (2498f9d207b216ad7438cd262c9136cc5453d288f97a74d4cd44a9a2accf9141)

Package imitates name of a popula library. During installation, obfuscated code downloads a malicious executable and starts it. It then exfiltrates at least cryptocurrency wallet data, probably more.

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

Campaign: 2026-08-flasq

Reasons (based on the campaign):

  • typosquatting

  • The package overrides the install command in setup.py to execute malicious code during installation.

  • exfiltration-generic

  • Downloads and executes a remote executable.

  • obfuscation

  • exfiltration-crypto

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "pypi/2026-08-flasq/flasq",
            "import_time": "2026-08-07T07:35:19.073935153Z",
            "sha256": "2498f9d207b216ad7438cd262c9136cc5453d288f97a74d4cd44a9a2accf9141",
            "versions": [
                "0.1.1",
                "0.1.2",
                "0.2.0",
                "0.3.0"
            ],
            "source": "kam193",
            "modified_time": "2026-08-07T07:01:59.251929Z"
        },
        {
            "id": "pypi/2026-08-flasq/flasq",
            "import_time": "2026-08-07T08:57:13.351596016Z",
            "sha256": "584cd0b30cef0f0b35b72eb0276753fbcb00f15c0ff9ee3cb8555ceba377aa2a",
            "modified_time": "2026-08-07T07:01:59.251929Z",
            "source": "kam193",
            "versions": [
                "0.1.1",
                "0.1.2",
                "0.2.0",
                "0.3.0"
            ]
        },
        {
            "id": "IN-MAL-2026-016911",
            "import_time": "2026-08-07T12:23:26.874312598Z",
            "sha256": "1ef5028c7103dbeab8de4e17eabb8a98a2491cb51ceeaa574029f7aea58dfa98",
            "modified_time": "2026-08-07T12:16:32Z",
            "source": "amazon-inspector",
            "versions": [
                "0.1.2"
            ]
        },
        {
            "id": "IN-MAL-2026-016914",
            "import_time": "2026-08-07T12:23:26.984676821Z",
            "sha256": "79bdf17d9c07586ddc0b7121037c2c10019d7be01d2dd49685680a8e876342c6",
            "modified_time": "2026-08-07T12:16:57Z",
            "source": "amazon-inspector",
            "versions": [
                "0.1.1"
            ]
        },
        {
            "id": "IN-MAL-2026-016890",
            "import_time": "2026-08-07T12:23:25.898770608Z",
            "sha256": "816f21881e18843f9a15e72f820abb56e7e171c9779ed64bcd6b03ab10f4811b",
            "modified_time": "2026-08-07T12:13:29Z",
            "source": "amazon-inspector",
            "versions": [
                "0.2.0"
            ]
        },
        {
            "id": "IN-MAL-2026-016910",
            "import_time": "2026-08-07T12:23:26.845984476Z",
            "sha256": "8ae342e7be11cf89cf0473d0bbf83dbbc8eb6f88e7bf45605f4e89ff54674147",
            "modified_time": "2026-08-07T12:16:23Z",
            "source": "amazon-inspector",
            "versions": [
                "0.3.0"
            ]
        }
    ],
    "iocs": {
        "ips": [
            "193.70.34.101"
        ],
        "urls": [
            "https://github.com/totti2188/8gp1Q7iZD3h4VW/releases/download/v1.3A/something"
        ]
    }
}
References
Credits

Affected packages

PyPI / flasq

Package

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

Affected ranges

Affected versions

0.*
0.1.1
0.1.2
0.2.0
0.3.0

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    },
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    },
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    },
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "setup.py",
            "tlsh": "fe21756a8e2111b46c14c3855953401b166baba66c2074e4beae33642b8d25dca7f097",
            "sha256": "8b7df77bb56304e04f1444a15847079398b0e864171717028dcef5f9a02d431e"
        }
    ],
    "package_integrity": [
        {
            "filename": "flasq-0.1.2.tar.gz",
            "hashes": {
                "sha256": "8330ef9d021a8b140698877ea764ad5ad8d829c587cf387132904883d4193a7d",
                "blake2b_256": "57b640d6584cf9deb2c23f204533e6346b62c51109df65dd12445f148eed6970",
                "md5": "f338d6c62df6cb2d45b7afb6a23440ac"
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/flasq/MAL-2026-13487.json"