MAL-2026-12394

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/jquery.ui.core/MAL-2026-12394.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12394
Published
2026-08-05T13:05:06Z
Modified
2026-08-05T13:35:33Z
Summary
Malicious code in jquery.ui.core (npm)
Details

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

Source: amazon-inspector (0fe5bc94d3ac40b31064d4dad8125dc959fdc3559785cdbeb03de2cc16c147ac)

Package is a dependency-confusion squat on the jquery.ui.core name published at version 9999.0.0. The main entry (index.js) is empty (module.exports = {}); the only functional code is a preinstall script (callback.js) that runs automatically on npm install. On install, the script reads os.hostname(), os.userInfo().username, process.cwd(), npm_config_registry, and CI repository-identifier environment variables (GITHUB_REPOSITORY, CI_PROJECT_PATH, BUILD_REPOSITORY_NAME, BITBUCKET_REPO_FULL_NAME, TRAVIS_REPO_SLUG, DRONE_REPO, BUILDKITE_PIPELINE_SLUG, CIRCLE_PROJECT_REPONAME, JOB_NAME) and issues an HTTP GET to http://75.119.137.232:31337/depconfuse with those values as query parameters. The 9999.0.0 version, empty module body, hardcoded bare-IP over plaintext HTTP, and reporting of the configured npm registry plus CI repo slug are the canonical dependency-confusion reconnaissance shape used to identify internal build systems that mistakenly resolved a private package name to the public registry.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-014875",
            "import_time": "2026-08-05T13:08:52.397793272Z",
            "modified_time": "2026-08-05T13:05:06Z",
            "sha256": "0fe5bc94d3ac40b31064d4dad8125dc959fdc3559785cdbeb03de2cc16c147ac",
            "source": "amazon-inspector",
            "versions": [
                "9999.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / jquery.ui.core

Package

Name
jquery.ui.core
View open source insights on deps.dev
Purl
pkg:npm/jquery.ui.core

Affected ranges

Affected versions

9999.*
9999.0.0

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "callback.js",
            "sha256": "cf163c553edd3c162c2e3b4b5f7ed8f52583c15a87a0e9dde389a662bfb0da1b",
            "tlsh": "e5117bb9c68c0c3409c2178079686c5eb8fbe292338294917f2d71d26bb227046b71bd"
        },
        {
            "path": "package.json",
            "sha256": "6291edfd58c20bfdea18ba776099c91cecd6ab6a8b3846cfb8086d555224fef9",
            "tlsh": "49d09730aa2248233cd8efd30c2b098600338e2b050878092b87801d06a826728ff28d"
        }
    ],
    "package_integrity": [
        {
            "filename": "jquery.ui.core-9999.0.0.tgz",
            "hashes": {
                "sha1": "f16cc864d80931969dc37a8071d22ee2b65198aa",
                "sha512_sri": "sha512-/UlePJPTU2W8/qAWnZDAuHroPF/bjxH/rGJGO0t/OHjKtwJPQtBBtfZuBjtL/OlpgxAMJakx28bJUOh2XT8Kbw=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/jquery.ui.core/MAL-2026-12394.json"