MAL-2026-17163

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/analytics-widget/MAL-2026-17163.json
JSON Data
https://api.test.osv.dev/v1/vulns/MAL-2026-17163
Published
2026-09-24T14:53:59Z
Modified
2026-09-24T15:30:05Z
Summary
Malicious code in analytics-widget (npm)
Details

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

Source: amazon-inspector (4b78f3ed716380da74c5d54de6e24b6b128536a7ce5772e8b05d03108a1d9b74)

The package is published as 'analytics-widget' with an empty description, but its main module contains no analytics functionality. On load, index.js schedules a 2-second timer that reads the 'token' key from browser localStorage, falls back to a JSON serialization of the entire localStorage store if that key is missing, and POSTs the result to the relative endpoint '/addPost' via fetch. When bundled into a consumer's frontend, every end-user session that loads the page has their auth token (or the full localStorage contents) sent to whichever origin serves the bundle, enabling session hijacking of the consuming application's users. The package name and empty metadata serve as a cover story; no legitimate analytics code is present.

Database specific 
{
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-020518",
            "import_time":  "2026-09-24T15:18:50.041207129Z",
            "modified_time":  "2026-09-24T14:54:07Z",
            "sha256":  "4b78f3ed716380da74c5d54de6e24b6b128536a7ce5772e8b05d03108a1d9b74",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.0"
            ]
        },
        {
            "id":  "IN-MAL-2026-020517",
            "import_time":  "2026-09-24T15:18:49.928282524Z",
            "modified_time":  "2026-09-24T14:53:59Z",
            "sha256":  "82d3b7c57f6ef962fd5de4bb10adaaacac2c030aa5598c173aba084c37633c2c",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / analytics-widget

Package

Name
analytics-widget
View open source insights on deps.dev
Purl
pkg:npm/analytics-widget

Affected ranges

Affected versions

1.*
1.0.0
1.0.1

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"
    }
]
indicators 
{
    "evidence_files":  [
        {
            "path":  "index.js",
            "sha256":  "775898de2fc58b3a5f8988282921e41803227599568a3840c86cb518501f7986",
            "tlsh":  "69d02b93146a68019b79d9fa1cf1e03816354419b0ab48a02dd2848d1fceb0c53b60c8"
        },
        {
            "path":  "package.json",
            "sha256":  "99b436357d60930761c6dc23d536a0b458cc914ab042f8a3d8fedf393668728c",
            "tlsh":  "94d0a7145a22943305c152620d1a8443b360cf5f10407c0c57cf581c42cf6b35dfa30c"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "analytics-widget-1.0.0.tgz",
            "hashes":  {
                "sha1":  "c1a7fbcca75159b1a8358ee195a42362e3b3afe9",
                "sha512_sri":  "sha512-+ENqAVm/OQj2qYXMhxFcGWvdaAiXehSaLCHqLWFwpTAeiUiDJJ8byQ3LN7jrqxPsArRdnBwV/eCeolAQUbnCiw=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/analytics-widget/MAL-2026-17163.json"