MAL-2026-18119

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/ssemver/MAL-2026-18119.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18119
Published
2026-10-20T23:02:41Z
Modified
2026-10-20T23:45:07Z
Summary
Malicious code in ssemver (PyPI)
Details

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

Source: kam193 (6aacc4af4fb66d334fa0153d79a707cf0c3decfe3d3b7ed41c67697f21d8b16b)

During installation, package downloads and executes malware.

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

Campaign: 2026-10-semvver

Reasons (based on the campaign):

  • Downloads and executes a remote executable.

  • malware

  • typosquatting

Database specific 
{
    "iocs":  {
        "domains":  [
            "c2-worker.crawlnet-claim.workers.dev"
        ],
        "urls":  [
            "https://c2-worker.crawlnet-claim.workers.dev/dl/pyupd"
        ]
    },
    "malicious-packages-origins":  [
        {
            "id":  "pypi/2026-10-semvver/ssemver",
            "import_time":  "2026-10-20T23:38:02.548420829Z",
            "modified_time":  "2026-10-20T23:02:41.419629Z",
            "sha256":  "6aacc4af4fb66d334fa0153d79a707cf0c3decfe3d3b7ed41c67697f21d8b16b",
            "source":  "kam193",
            "versions":  [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

PyPI / ssemver

Package

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

Affected ranges

Affected versions

1.*
1.0.0

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/pypi/ssemver/MAL-2026-18119.json"