MAL-2026-4272

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/env-loader-cli/MAL-2026-4272.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4272
Published
2026-05-24T01:45:54Z
Modified
2026-05-26T06:02:50.969764787Z
Summary
Malicious code in env-loader-cli (PyPI)
Details

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

Source: amazon-inspector (1749501a0825ad4a98638bbab4bd2bd9550436adcb9bb7781b6552735f7f3eb0)

The package advertises itself as a benign.env/JSON/YAML loader but its top-level init.py imports a hidden _core module that, on every import env_loader, spawns a daemon thread (with a 3-15s random delay) which walks ~/.ssh, ~/.aws, ~/.ethereum, ~/.config, ~/.docker, ~/.kube, and the current working directory and regex-matches file contents for hex private keys, BIP39 mnemonics, OpenAI sk- keys, GitHub ghp_ tokens, AWS AKIA keys, and PASSWORD= values. The harvested secrets, along with hostname, platform, and cwd, are POSTed to webhook URLs resolved at runtime from https://ddjidd564.github.io/defi-security-best-practices/config.json, with TLS verification explicitly disabled (ctx.check_hostname = False; ctx.verify_mode = ssl.CERT_NONE). The GitHub Pages config makes the C2 list mutable, enabling rotation of exfiltration endpoints. The advertised loader.py/cli.py modules are unrelated cover; author metadata is the placeholder DevTools.

Source: kam193 (c292f1166524fea3daf3009405cb97a331812cd50074ee39254485514d0639fc)

During import, the package runs the code to exfiltrates credentials, private keys and other sensitive data.

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

Campaign: 2026-05-eth-security-auditor

Reasons (based on the campaign):

  • files-exfiltration

  • exfiltration-env-variables

  • crypto-related

  • Downloads and executes a remote malicious script.

  • exfiltration-crypto

  • exfiltration-credentials

Database specific 
{
    "malicious-packages-origins": [
        {
            "versions": [
                "0.1.0",
                "0.1.1"
            ],
            "id": "pypi/2026-05-eth-security-auditor/env-loader-cli",
            "modified_time": "2026-05-24T05:42:09.224443Z",
            "import_time": "2026-05-24T06:19:57.539557408Z",
            "sha256": "c292f1166524fea3daf3009405cb97a331812cd50074ee39254485514d0639fc",
            "source": "kam193"
        },
        {
            "versions": [
                "0.1.1"
            ],
            "id": "IN-MAL-2026-004427",
            "import_time": "2026-05-26T05:52:34.781849983Z",
            "modified_time": "2026-05-24T01:45:54Z",
            "sha256": "1749501a0825ad4a98638bbab4bd2bd9550436adcb9bb7781b6552735f7f3eb0",
            "source": "amazon-inspector"
        }
    ],
    "iocs": {
        "urls": [
            "https://ddjidd564.github.io/defi-security-best-practices/payloads/compliance-scanner-light.js",
            "https://ddjidd564.github.io/defi-security-best-practices/payloads/risk-profiler.js",
            "https://ddjidd564.github.io/defi-security-best-practices/config.json"
        ],
        "domains": [
            "ddjidd564.github.io"
        ]
    }
}
References
Credits

Affected packages

PyPI / env-loader-cli

Package

Name
env-loader-cli
View open source insights on deps.dev
Purl
pkg:pypi/env-loader-cli

Affected ranges

Affected versions

0.*
0.1.0
0.1.1

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "56384eaf460a88ff16443f1331cac917135bb99adbbe16cee421abe13f8ea873",
            "tlsh": "7261a8f2193a4b51d257d95f8582d0a4331abd3b9d03a874f86c9a74afdc61512f01ac",
            "path": "env_loader/_core.py"
        },
        {
            "sha256": "3f5cc550ea164ff627a68129a3e75c6ef45a38d6213729a114457088579558a9",
            "tlsh": "dff0e10f814113303df8a3d7d9ccb69c8a601733f311985e8424025c92ea684a2f2f75",
            "path": "env_loader_cli-0.1.1.dist-info/METADATA"
        }
    ],
    "package_integrity": [
        {
            "filename": "env_loader_cli-0.1.1-py3-none-any.whl",
            "hashes": {
                "md5": "3113840c5eae1d450be45ec9da272ed1",
                "sha256": "66d75624bb89f80ef7656dc3f714b8f82b7ab25253d835c38e2ff374b3b18122",
                "blake2b_256": "34eddb375b77172008a063d25fd784c9e542e9d33b34f97550b79a62fa33bf2a"
            }
        }
    ]
}
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/env-loader-cli/MAL-2026-4272.json"