MAL-2026-16221

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bender-rspack-config/MAL-2026-16221.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-16221
Published
2026-09-15T17:26:13Z
Modified
2026-09-17T14:30:05Z
Summary
Malicious code in bender-rspack-config (npm)
Details

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

Source: amazon-inspector (3a6997cea54ae81d1addcb41ddac29e94923dfa1042265253c555cb4945ad5b4)

package.json declares a preinstall lifecycle script that runs wget against a hardcoded webhook.site URL, embedding $(whoami), $(pwd), and $(hostname) as query-string parameters. The request fires automatically on npm install, transmitting the installer's username, working-directory path, and hostname to an author-controlled collector at webhook.site/9d385aa8-875e-48b6-938c-6c0f5a0e8319/. The behavior is self-labeled as a dependency-confusion proof of concept, but the shipped code is a functioning identity-beacon regardless of framing.

Source: ossf-package-analysis (159730c04aeb50c0e832685be81c3f332d8692bf4a9f1a419c7223dbe5059491)

The OpenSSF Package Analysis project identified 'bender-rspack-config' @ 1.0.0 (npm) as malicious.

It is considered malicious because:

  • The package executes one or more commands associated with malicious behavior.
Database specific 
{
    "malicious-packages-origins":  [
        {
            "import_time":  "2026-09-16T10:19:31.458108308Z",
            "modified_time":  "2026-09-15T17:26:13Z",
            "sha256":  "159730c04aeb50c0e832685be81c3f332d8692bf4a9f1a419c7223dbe5059491",
            "source":  "ossf-package-analysis",
            "versions":  [
                "1.0.0"
            ]
        },
        {
            "id":  "IN-MAL-2026-020119",
            "import_time":  "2026-09-17T14:20:23.118241449Z",
            "modified_time":  "2026-09-17T14:12:50Z",
            "sha256":  "3a6997cea54ae81d1addcb41ddac29e94923dfa1042265253c555cb4945ad5b4",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bender-rspack-config

Package

Name
bender-rspack-config
View open source insights on deps.dev
Purl
pkg:npm/bender-rspack-config

Affected ranges

Affected versions

1.*
1.0.0

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":  "package.json",
            "sha256":  "ff66c2a723b54fa934e286f4aefb19db59825fb6912b4b2b50ea5dda6261c6b0",
            "tlsh":  "3401dd39f124bea31bc44ba00164422bba26ff9bc3053c0debe32a19d30d9b6007c658"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "bender-rspack-config-1.0.0.tgz",
            "hashes":  {
                "sha1":  "429421e2e328596c43c0be9acfea283f17d05a64",
                "sha512_sri":  "sha512-uf/eVs4aQIyqybrkSlwfDKjeB7l8yj8tHFyl2KDpX75pq30Vk9Qaig5yGoGejOUor+h7eFgeFrOp8FOxEjUIKg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bender-rspack-config/MAL-2026-16221.json"