MAL-2026-12511

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/application_base/MAL-2026-12511.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12511
Published
2026-08-05T13:17:43Z
Modified
2026-08-05T14:35:12.682847248Z
Summary
Malicious code in application_base (npm)
Details

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

Source: amazon-inspector (73797279861276dbe0ee846487e1a6c4206ae7c5c97cf5c18b478d78d9f2ffb7)

applicationbase@9999.0.0 runs callback.js from its preinstall lifecycle hook on npm install. The script collects os.hostname(), os.userInfo().username, process.cwd(), the configured npm registry, and CI repo-slug environment variables (GITHUBREPOSITORY, CIPROJECTPATH, BUILDREPOSITORYNAME, BITBUCKETREPOFULLNAME, TRAVISREPOSLUG, DRONEREPO, BUILDKITEPIPELINESLUG, CIRCLEPROJECTREPONAME, JOB_NAME), and issues an HTTP GET to http://75.119.137.232:31337/depconfuse with those values as query parameters. The bare-IP plain-HTTP destination is not a first-party telemetry endpoint. Combined with the 9999.0.0 version overshoot and the depconfuse path, this is a dependency-confusion reconnaissance beacon: it signals to the attacker whether an internal package name resolved to their public registry entry inside a target's build environment, along with the host, user, working directory, and CI repository identity needed to target that organization for a follow-on internal-package hijack.

Database specific 
{
    "malicious-packages-origins": [
        {
            "source": "amazon-inspector",
            "import_time": "2026-08-05T14:19:47.102505687Z",
            "sha256": "73797279861276dbe0ee846487e1a6c4206ae7c5c97cf5c18b478d78d9f2ffb7",
            "id": "IN-MAL-2026-014961",
            "modified_time": "2026-08-05T13:17:43Z",
            "versions": [
                "9999.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / application_base

Package

Name
application_base
View open source insights on deps.dev
Purl
pkg:npm/application_base

Affected ranges

Affected versions

9999.*
9999.0.0

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "application_base-9999.0.0.tgz",
            "hashes": {
                "sha512_sri": "sha512-sultWc02mUDW9LZVd3YlzbR5UK9iOuH1cwmtxyBIA4/VjfXxrJtTjIdCPjDIoff8imFYO7schAf+PThTD/S1aw==",
                "sha1": "b895b0c773ba20e26a450fd74f15db92e3d75bc6"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "88119ef9c68c1c3409c2178479686c5eb8fbe29133c294917f2d71d26bb22b046b71bd",
            "sha256": "a2036bc8e43f3f1032f5f7e8fb64b41500b6dd5f35aa288029038fe4e87c9cad",
            "path": "callback.js"
        }
    ]
}
cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/application_base/MAL-2026-12511.json"