MAL-2026-14397

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sm-checkout/MAL-2026-14397.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-14397
Aliases
  • GHSA-ccvj-vpx6-qq27
Published
2026-08-23T19:20:35Z
Modified
2026-08-24T16:46:04Z
Summary
Malicious code in sm-checkout (npm)
Details

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

Source: amazon-inspector (0bc8dabb0ecf46dc57dd07dacdf28c9cddf629ffb8e9b0cea75e71cd999feaf0)

sm-checkout@99.0.0 declares preinstall and postinstall lifecycle scripts in package.json that invoke curl against a hardcoded bare-IP URL over plain HTTP (http://16.192.173.5/sm-checkout/pre and http://16.192.173.5/sm-checkout/post) on npm install. The inflated 99.0.0 version is calibrated to win semver resolution against a private package of the same name, and the lifecycle callbacks confirm successful execution on any host that mistakenly resolves the public name, leaking the installer's source IP and install timing to the operator of 16.192.173.5. A source comment self-labels the package as a dependency-confusion test; the labelling does not change that the artifact runs an unauthenticated outbound beacon on every install in build systems and developer machines that pull it.

Source: ghsa-malware (897b995712d1f63fb75db33a78c7e8fff81d49fd3a5fb05dca13613e6d80d1e9)

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Source: ossf-package-analysis (7e0e304166bd31c7677998bce3b0fa29ce87fcf40861c714a8f69417fc1083d1)

The OpenSSF Package Analysis project identified 'sm-checkout' @ 99.0.1 (npm) as malicious.

It is considered malicious because:

  • The package executes one or more commands associated with malicious behavior.
Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-018610",
            "import_time": "2026-08-24T05:20:14.505726169Z",
            "modified_time": "2026-08-24T05:07:33Z",
            "sha256": "0bc8dabb0ecf46dc57dd07dacdf28c9cddf629ffb8e9b0cea75e71cd999feaf0",
            "source": "amazon-inspector",
            "versions": [
                "99.0.0"
            ]
        },
        {
            "id": "IN-MAL-2026-018606",
            "import_time": "2026-08-24T05:20:14.089287602Z",
            "modified_time": "2026-08-24T05:07:01Z",
            "sha256": "b682bb5f16534282e26636060e35b1ad04fbbc6832539a79bd2c1c2a3b04e169",
            "source": "amazon-inspector",
            "versions": [
                "99.0.1"
            ]
        },
        {
            "import_time": "2026-08-24T05:47:55.269656189Z",
            "modified_time": "2026-08-23T19:20:35Z",
            "sha256": "7e0e304166bd31c7677998bce3b0fa29ce87fcf40861c714a8f69417fc1083d1",
            "source": "ossf-package-analysis",
            "versions": [
                "99.0.1"
            ]
        },
        {
            "id": "GHSA-ccvj-vpx6-qq27",
            "import_time": "2026-08-24T16:26:16.744490666Z",
            "modified_time": "2026-08-24T15:42:58Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "897b995712d1f63fb75db33a78c7e8fff81d49fd3a5fb05dca13613e6d80d1e9",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / sm-checkout

Package

Name
sm-checkout
View open source insights on deps.dev
Purl
pkg:npm/sm-checkout

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

99.*
99.0.0
99.0.1

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "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.",
        "name": "Embedded Malicious Code"
    },
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "package.json",
            "sha256": "1269054725a566dfa6c7de1d0d1883b8713579413a033ab842854d341f9c9e43",
            "tlsh": "bec0125c0504d3726bc947e5af169608b491014102d65e54c3d109f98f2227aa14fa16"
        },
        {
            "path": "index.js",
            "sha256": "ca70ed4fcf2e2e63def25d0b04dd02cb52f93de50d60228b38a58e40a0ab82bc",
            "tlsh": "ecc08c85a0a8723451e4488b6021021634efedb1b7132a95e24882ada118da48247098"
        }
    ],
    "package_integrity": [
        {
            "filename": "sm-checkout-99.0.0.tgz",
            "hashes": {
                "sha1": "5af3dbef6833076f33f727432bc330f6997859f8",
                "sha512_sri": "sha512-16ZU5VWxaU5sat9EAdQZvm/kSKd6EHCTn3WkZwcOzO6kLbl/tR9d8FZ2SNqupwOiKSBWj2GV4VnxeuqRLQt+ng=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/sm-checkout/MAL-2026-14397.json"