MAL-2026-12334

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ach-detail/MAL-2026-12334.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12334
Published
2026-08-05T13:04:48Z
Modified
2026-08-06T23:50:04.283211601Z
Summary
Malicious code in ach-detail (npm)
Details

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

Source: amazon-inspector (6c8ce91cbe1aaa587613795b1b82cc84384b499a29af4a18c0a820b77ea1d834)

The npm package ach-detail@99.0.1 ships a preinstall lifecycle script (scripts/preinstall.js) that runs automatically on npm install. The script collects the installer's hostname, package name and version, Node.js version, platform, timestamp, and a nonce, and POSTs the payload to a hardcoded remote endpoint at https://callback.kuldeep.io/beacon, with an HTTP fallback to the same host. The package is published to the public npm registry at version 99.0.1 — a version-inflation pattern consistent with dependency-confusion targeting of a private internal package of the same name. A log string in the script self-labels the behavior as an authorized bug-bounty PoC, but that label is author-controlled, does not change the observable behavior, and does not represent consent from any installer that resolves the package (accidentally or through dependency-confusion). Installer-side host identifiers leave the machine to a non-first-party endpoint on install.

Database specific 
{
    "malicious-packages-origins": [
        {
            "versions": [
                "99.0.2"
            ],
            "import_time": "2026-08-05T13:08:52.297461707Z",
            "sha256": "136c9cd3535c5ebb047f79bd6de88016db816903f1623cf96b5e765c78cab97e",
            "id": "IN-MAL-2026-014873",
            "modified_time": "2026-08-05T13:04:48Z",
            "source": "amazon-inspector"
        },
        {
            "versions": [
                "99.0.1"
            ],
            "import_time": "2026-08-06T18:09:04.343064017Z",
            "sha256": "6c8ce91cbe1aaa587613795b1b82cc84384b499a29af4a18c0a820b77ea1d834",
            "id": "IN-MAL-2026-016674",
            "modified_time": "2026-08-06T16:19:21Z",
            "source": "amazon-inspector"
        }
    ]
}
References
Credits

Affected packages

npm / ach-detail

Package

Name
ach-detail
View open source insights on deps.dev
Purl
pkg:npm/ach-detail

Affected ranges

Affected versions

99.*
99.0.1
99.0.2

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "ach-detail-99.0.2.tgz",
            "hashes": {
                "sha512_sri": "sha512-eglA47hmMFu/25697LSmLaskzccQWS0ftp4gzx0upXGnbJpWPFh1BdyGcP4IpOsfVkFuVDTGg6L2501WnY3qWw==",
                "sha1": "cc07eaa6975085edc7f2c06d45a6166d86a2a9ca"
            }
        }
    ],
    "evidence_files": [
        {
            "path": "scripts/preinstall.js",
            "sha256": "8c488575448939da69a7abb168d73970e44dfb49523ca530368269a487ab2e8b",
            "tlsh": "4fb1fe9b6ce1b0742662e2f60b5f6158f37ae403005ed560bc4e83506f941ada37eafd"
        }
    ]
}
cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    },
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ach-detail/MAL-2026-12334.json"