MAL-2026-6716

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/test-pkg-pnpm/MAL-2026-6716.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-6716
Aliases
  • GHSA-7grv-5j2w-4wx3
Published
2026-07-01T20:47:19Z
Modified
2026-08-20T04:00:12Z
Summary
Malicious code in test-pkg-pnpm (npm)
Details

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

Source: amazon-inspector (ae5df84cbdf3092d5f7b8f405248144eacdf5119c756c97726974e547810ebec)

On npm install, the package's postinstall script (node demo-clean.js) auto-executes two installer-side actions without consent. First, openDemo() platform-branches via execSync to open https://github.com/X3r0Day/BunnyHijack in the installer's default browser and to spawn the OS calculator (calc on Windows, open -a Calculator on macOS, gnome-calculator/kcalc on Linux) — the canonical calc.exe proof of unauthenticated code execution on the installer's host. Second, cleanup() walks every ancestor directory of INIT_CWD, process.cwd(), and the user's home directory, calling fs.rmSync(..., {recursive:true, force:true}) against paths inside each ancestor's node_modules, node_modules/.pnpm, node_modules/.bin/node* shims, ~/.npm/_npx, ~/.bun/install/cache, and tmpdir entries; cleanupPackageJson() then reads each ancestor package.json and rewrites it via fs.writeFileSync after deleting matching entries from dependencies, devDependencies, optionalDependencies, and peerDependencies. The destructive recursive-force-rm operates well outside the package's own directory and reaches the user's home tree, and the spawned-process primitive can be retargeted to any binary in a future release.

Source: ghsa-malware (42ab043183eddea4feeeba6b04397cdda6189b7d4c4bfdb11197a88646a1deca)

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-2026-007894",
            "import_time": "2026-07-01T21:04:20.562853387Z",
            "modified_time": "2026-07-01T20:47:27Z",
            "sha256": "8ee6a2ba8d90a67199eae146b7688190adb974ce5aa1be7c07d56e2e3999d270",
            "source": "amazon-inspector",
            "versions": [
                "1.0.1"
            ]
        },
        {
            "id": "IN-MAL-2026-007893",
            "import_time": "2026-07-01T21:04:20.500515222Z",
            "modified_time": "2026-07-01T20:47:19Z",
            "sha256": "ae5df84cbdf3092d5f7b8f405248144eacdf5119c756c97726974e547810ebec",
            "source": "amazon-inspector",
            "versions": [
                "1.0.4"
            ]
        },
        {
            "id": "GHSA-7grv-5j2w-4wx3",
            "import_time": "2026-08-20T01:06:54.058167199Z",
            "modified_time": "2026-08-19T15:20:08Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "42ab043183eddea4feeeba6b04397cdda6189b7d4c4bfdb11197a88646a1deca",
            "source": "ghsa-malware"
        },
        {
            "id": "IN-MAL-2026-018439",
            "import_time": "2026-08-20T03:49:51.422234732Z",
            "modified_time": "2026-08-20T03:40:23Z",
            "sha256": "72570ced08f2e9508907135652cfeac86ffea9675e048a0ba5b469014f81fcff",
            "source": "amazon-inspector",
            "versions": [
                "1.0.2"
            ]
        },
        {
            "id": "IN-MAL-2026-018436",
            "import_time": "2026-08-20T03:49:51.128663454Z",
            "modified_time": "2026-08-20T03:39:57Z",
            "sha256": "9a8b971fee9582aa85c826801327a2df5254d442513711bce12d1846bb3c8115",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        },
        {
            "id": "IN-MAL-2026-018437",
            "import_time": "2026-08-20T03:49:51.211913896Z",
            "modified_time": "2026-08-20T03:40:05Z",
            "sha256": "e7c871f66e9a752588e38a2dc2885198fd14fd1561716868c0799a19dbb50921",
            "source": "amazon-inspector",
            "versions": [
                "1.0.3"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / test-pkg-pnpm

Package

Name
test-pkg-pnpm
View open source insights on deps.dev
Purl
pkg:npm/test-pkg-pnpm

Affected ranges

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

Affected versions

1.*
1.0.0
1.0.1
1.0.2
1.0.3
1.0.4

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"
    },
    {
        "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": "package.json",
            "sha256": "8f7a41070899d5ceb3cd3a6efd35364f45943b1b41a0f8a01010993f897e48d1",
            "tlsh": "1ed02b448861467324cd38615d399403a7380b4780153c2c62d71099aa497bb04b9265"
        },
        {
            "path": "shim.js",
            "sha256": "e4ae6c862f2fcf3c6440c966cd74bd9f07a06be072bd301df27ae0848aa50adb",
            "tlsh": "3331726796a197f42de04dc2a487482174abc723b205ffb881ced1536b8a41702fb4f9"
        }
    ],
    "package_integrity": [
        {
            "filename": "test-pkg-pnpm-1.0.1.tgz",
            "hashes": {
                "sha1": "b399121b46ab19bca631a7c8234653a187e9a343",
                "sha512_sri": "sha512-Jki+8yoVYBSIpTuE83uAVs1P1+sB7zGchYs0/a6Ehyc2FFIBXxtxeRKEMgN/paXXit0sHpH3rMCizPaOluUlgw=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/test-pkg-pnpm/MAL-2026-6716.json"