MAL-2026-12678

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/delivery-ci-pipeline-rules/MAL-2026-12678.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12678
Published
2026-08-05T13:55:43Z
Modified
2026-08-05T14:36:21.436636125Z
Summary
Malicious code in delivery-ci-pipeline-rules (npm)
Details

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

Source: amazon-inspector (48367fe7933e3c07d664eda305a21bd8de43e06c685170b2146da16249bde15c)

index.js unconditionally require()s init.js on load. init.js assembles attacker-controlled hostnames from split string fragments joined at runtime (e.g. oob-worker.cf99-9b3.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf103-070.workers.dev) and fetches a platform-specific executable via https.get, selecting per-platform payload paths (/pkg/package, /pkg/package.exe, /pkg/loadermac). The fetched bytes are written to /tmp or %TEMP% under a disguised name (.cache<rnd> or dotnetdiag<rnd>.exe), chmod 0755, then spawned detached via /bin/sh -c or cmd.exe /c. When HTTPS fails, _init.js falls back to a DNS-TXT covert channel over sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru, resolving c.<domain> for a chunk count, iterating 0.<domain>..N.<domain>, and base64-decoding the concatenated TXT records into the executable. Host and domain constants are string-fragmented to defeat literal scanners; execution is gated by a ~22000-second cache TTL. Installing or importing this package results in an attacker-controlled binary being fetched from non-publisher infrastructure and executed on the installer's host.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-015096",
            "import_time": "2026-08-05T14:20:01.530057935Z",
            "sha256": "48367fe7933e3c07d664eda305a21bd8de43e06c685170b2146da16249bde15c",
            "modified_time": "2026-08-05T13:55:43Z",
            "versions": [
                "35.9.3"
            ],
            "source": "amazon-inspector"
        }
    ]
}
References
Credits

Affected packages

npm / delivery-ci-pipeline-rules

Package

Name
delivery-ci-pipeline-rules
View open source insights on deps.dev
Purl
pkg:npm/delivery-ci-pipeline-rules

Affected ranges

Affected versions

35.*
35.9.3

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-dM2Ja7u7TgnT6vwRBnwf1QHVxtTnCfo0+nPkV5AO+NoYamfhP0eYkAFWvCEq0n2/XkGdsETVluw4FjtKNXopmQ==",
                "sha1": "7b1708ddb1debdf6e4c19048f722c8c4decff633"
            },
            "filename": "delivery-ci-pipeline-rules-35.9.3.tgz"
        }
    ],
    "evidence_files": [
        {
            "sha256": "633443c80b3e03f4f02173f2bc7a753d3c392199f5e29fdccf79dce97dfa1f8c",
            "path": "_init.js",
            "tlsh": "35a163aa1666701847b0dbe4ca175415f65af6637380c2c8fb9c699c5ff212482b2efc"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/delivery-ci-pipeline-rules/MAL-2026-12678.json"