MAL-2026-17757

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/webreader/MAL-2026-17757.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17757
Published
2026-10-10T11:07:02Z
Modified
2026-10-10T11:45:03Z
Summary
Malicious code in webreader (PyPI)
Details

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

Source: kam193 (165632b7385ab993b6a8aa74c76ff55cc1ef55748c67b5dfabca284bc8ced087)

In this campaign, the main package (webreader) has an embeded pickle disguised as a config. A related dependency (pafer) contains code to load the pickle. During unpickling, malicious code embeded in the pickle file is automatically executed. It then establishes persistence via a PTH file and downloads the next stage payload. It finally acts like a RAT, allowing remote exfiltration and code execution.

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

Campaign: 2026-10-webreader

Reasons (based on the campaign):

  • rat

  • Downloads and executes a remote malicious script.

  • obfuscation

  • The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.

  • abuses-pth

  • persistence

  • The malicious code is intentionally included in a dependency of the package

  • files-exfiltration

Database specific 
{
    "iocs": {
        "domains": [
            "frjmzbjbhwvtdnsuodmu.supabase.co"
        ],
        "urls": [
            "https://api.npoint.io/40e32d283a9d97e59252/a"
        ]
    },
    "malicious-packages-origins": [
        {
            "id": "pypi/2026-10-webreader/webreader",
            "import_time": "2026-10-10T11:40:44.044652644Z",
            "modified_time": "2026-10-10T11:07:02.763324Z",
            "sha256": "165632b7385ab993b6a8aa74c76ff55cc1ef55748c67b5dfabca284bc8ced087",
            "source": "kam193",
            "versions": [
                "2.3.8"
            ]
        }
    ]
}
References
Credits

Affected packages

PyPI / webreader

Package

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

Affected ranges

Affected versions

2.*
2.3.8

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/webreader/MAL-2026-17757.json"