MAL-2026-11045

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/subapp-pkg-util/MAL-2026-11045.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-11045
Published
2026-07-24T06:42:00Z
Modified
2026-08-04T22:05:17.133166974Z
Summary
Malicious code in subapp-pkg-util (npm)
Details

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

Source: amazon-inspector (ae51b43e9a5110ec02eb9aa1cbf03837b2a560f4b6c8168b1c2d675802a113ae)

package.json declares a postinstall hook that runs index.js on npm install. index.js collects host identifiers (os.hostname(), os.userInfo(), os.platform(), OS release) and enriches them with public IP (via ipify) and geo/ISP (via ipapi.co), then POSTs the JSON payload to a hardcoded Burp Collaborator subdomain at https://dq7q2vt6l79ouvgyzavan3w2rtxkp8gw5.oastify.com/callback. The package self-describes as a dependency-confusion takeover PoC; the beacon fires automatically on install without user interaction.

Source: ossf-package-analysis (9ec05191ebd2f02dcf912c49fc5d345c3b9201fb691a11a0142fec91cc6d42d4)

The OpenSSF Package Analysis project identified 'subapp-pkg-util' @ 99.0.1 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.
Database specific 
{
    "malicious-packages-origins": [
        {
            "modified_time": "2026-07-24T06:42:00Z",
            "versions": [
                "99.0.1"
            ],
            "source": "ossf-package-analysis",
            "import_time": "2026-07-24T08:21:08.880839307Z",
            "sha256": "9ec05191ebd2f02dcf912c49fc5d345c3b9201fb691a11a0142fec91cc6d42d4"
        },
        {
            "sha256": "ae51b43e9a5110ec02eb9aa1cbf03837b2a560f4b6c8168b1c2d675802a113ae",
            "modified_time": "2026-08-04T21:30:49Z",
            "versions": [
                "99.0.1"
            ],
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-011088",
            "import_time": "2026-08-04T21:33:16.396544544Z"
        }
    ]
}
References
Credits

Affected packages

npm / subapp-pkg-util

Package

Name
subapp-pkg-util
View open source insights on deps.dev
Purl
pkg:npm/subapp-pkg-util

Affected ranges

Affected versions

99.*
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"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/subapp-pkg-util/MAL-2026-11045.json"
indicators 
{
    "evidence_files": [
        {
            "path": "index.js",
            "sha256": "2a0584f72c042fb2449769de340230254e111f46cd502e0795085ec42e2c898c",
            "tlsh": "10710fbb15f5523476f3e29dca0b82012112f1473e45ae69798c33805fcd22a63b27f9"
        }
    ],
    "package_integrity": [
        {
            "hashes": {
                "sha1": "f68f86bc19c140ffe18f27a8d09fe2a914f4d682",
                "sha512_sri": "sha512-3sSDnQobMfGkFDMxLtM5NFzVPDO/8QtWKHX8gHgdOKvKISnvhvbtpq8rK8nq1xZBbGhzNwQDsDZJFSL81LOlkQ=="
            },
            "filename": "subapp-pkg-util-99.0.1.tgz"
        }
    ]
}