MAL-2026-13541

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/delivery-ci-documentation/MAL-2026-13541.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13541
Published
2026-08-07T12:26:17Z
Modified
2026-08-07T13:20:22.638650237Z
Summary
Malicious code in delivery-ci-documentation (npm)
Details

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

Source: amazon-inspector (af740a7d6bb84ba6086ce037139d5e0a6008c308db58069c184fff16e0a4a203)

On require('delivery-ci-documentation'), index.js loads init.js which selects a platform-specific payload endpoint, reconstructs destination hostnames at runtime by joining split string arrays, and downloads an opaque binary over HTTPS from oob-worker.cf10x-*.workers.dev hosts. When HTTPS retrieval fails, it falls back to a DNS TXT covert channel that reassembles a base64-encoded payload from numbered subdomains under *.dl.wel1.ru. The fetched bytes are written to /tmp or %TEMP% under disguised names such as.cache<hex> and dotnetdiag<hex>.exe, chmod 0755 on POSIX, and spawned detached via /bin/sh -c '<path> &' or cmd.exe /c start /b. No hash or signature verification is performed, the URLs are mutable, the destination hosts do not match any legitimate publisher for a package advertised as a documentation abstraction, and both the staging paths and the transport are covert. The result is arbitrary attacker-controlled code execution on the installer's host on import.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-016980",
            "import_time": "2026-08-07T12:51:20.739193126Z",
            "sha256": "af740a7d6bb84ba6086ce037139d5e0a6008c308db58069c184fff16e0a4a203",
            "versions": [
                "35.3.7"
            ],
            "source": "amazon-inspector",
            "modified_time": "2026-08-07T12:26:17Z"
        }
    ]
}
References
Credits

Affected packages

npm / delivery-ci-documentation

Package

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

Affected ranges

Affected versions

35.*
35.3.7

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "_init.js",
            "tlsh": "1da1885a166a70188bb0d7e4c7275416fa5bf66333c0c6d4fb5ca5981fb21248272efc",
            "sha256": "ee9f9ccadfa16e38ea35ab216fce31573587658d9b03030d89201211894753ab"
        }
    ],
    "package_integrity": [
        {
            "filename": "delivery-ci-documentation-35.3.7.tgz",
            "hashes": {
                "sha1": "04551d79f775c79847b8fc82e304a8eff5554cc3",
                "sha512_sri": "sha512-wfkCO8Yy0UM0D26KDB8dVdjgPbjCBOLidZludkAUcYznAIaqXojZa0bf3JtPPlkcXha3g/idsA8lPQ7mTbnP/g=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/delivery-ci-documentation/MAL-2026-13541.json"