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.osv.dev/v1/vulns/MAL-2026-17163
Aliases
  • GHSA-548g-r2c9-6chm
Published
2026-09-24T14:53:59Z
Modified
2026-09-30T07:00:08Z
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.

Source: ghsa-malware (399579776689b5ab6b5fe78e2c79da4ddf4950f898e9017333bdadaf3603a7f3)

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.

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"
            ]
        },
        {
            "id":  "GHSA-548g-r2c9-6chm",
            "import_time":  "2026-09-30T06:43:04.817884401Z",
            "modified_time":  "2026-09-30T05:51:33Z",
            "ranges":  [
                {
                    "events":  [
                        {
                            "introduced":  "0"
                        }
                    ],
                    "type":  "SEMVER"
                }
            ],
            "sha256":  "399579776689b5ab6b5fe78e2c79da4ddf4950f898e9017333bdadaf3603a7f3",
            "source":  "ghsa-malware"
        }
    ]
}
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

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

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"
    },
    {
        "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"