MAL-2026-12110

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ethereum-sign-utils/MAL-2026-12110.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12110
Published
2026-08-05T06:17:52Z
Modified
2026-08-05T07:21:11.421249283Z
Summary
Malicious code in ethereum-sign-utils (npm)
Details

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

Source: amazon-inspector (a6f2998ee6903e6a20b55e371b8b074fb130d3e4c6f6d489999fd61f7e536673)

On npm install, the package's postinstall script (node postinstall.js, declared in package.json scripts.postinstall) reads installer-side secret files including.env variants, ~/.npmrc, ~/.aws/credentials, ~/.aws/config, ~/.ssh/idrsa/ided25519/id_ecdsa, Solana and Ethereum keystores, and ~/.gitconfig. It also enumerates hidden directories under $HOME and reads any file under 50KB whose name matches wallet|key|secret|seed|mnemonic|keystore|private or has.json/.pem/.key extensions. Collected contents are POSTed as JSON to the hardcoded endpoint https://enxhcjpo5ev.x.pipedream.net/c. The package's main index.js is empty, so the package provides no legitimate functionality — its sole effect on install is credential and wallet-key exfiltration. The package name mimics utilities in the Ethereum tooling ecosystem as a lure.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-08-05T07:06:46.159693549Z",
            "id": "IN-MAL-2026-013409",
            "source": "amazon-inspector",
            "versions": [
                "1.0.1"
            ],
            "modified_time": "2026-08-05T06:18:57Z",
            "sha256": "1d299ce8d197e32ce1347d34cd9551a5b85e3bef67ffce020e1eab5990c89e96"
        },
        {
            "id": "IN-MAL-2026-013419",
            "import_time": "2026-08-05T07:06:46.733097539Z",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ],
            "modified_time": "2026-08-05T06:20:29Z",
            "sha256": "a6f2998ee6903e6a20b55e371b8b074fb130d3e4c6f6d489999fd61f7e536673"
        },
        {
            "id": "IN-MAL-2026-013401",
            "import_time": "2026-08-05T07:06:45.680731752Z",
            "source": "amazon-inspector",
            "versions": [
                "1.0.2"
            ],
            "modified_time": "2026-08-05T06:17:52Z",
            "sha256": "8569458876baf8df569bc6e86c507d842f303442bf93f5bdb5f5fa0d14988842"
        }
    ]
}
References
Credits

Affected packages

npm / ethereum-sign-utils

Package

Name
ethereum-sign-utils
View open source insights on deps.dev
Purl
pkg:npm/ethereum-sign-utils

Affected ranges

Affected versions

1.*
1.0.0
1.0.1
1.0.2

Database specific

indicators 
{
    "evidence_files": [
        {
            "tlsh": "9e2130d200f59b65268a0a9ad8182700527769676c0aacc17efc6e874f888940e37bfc",
            "path": "postinstall.js",
            "sha256": "720a192a5f8902b99c23e21e27f721d723c455d2302d30a186187189c8cb9288"
        }
    ],
    "package_integrity": [
        {
            "filename": "ethereum-sign-utils-1.0.1.tgz",
            "hashes": {
                "sha1": "bc2ab3ccb572c6e0c161674e5a59f189c0a5d21a",
                "sha512_sri": "sha512-iyJw4HR7/HZYemKtvjJg4CMhF13ekas+GjMYgXutdze6riHvqS+v4NE66x8pB1sbzLUyOv7cMcCEo9arWI16EA=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ethereum-sign-utils/MAL-2026-12110.json"
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    },
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    },
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]