MAL-2026-17662

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/hardhat-promised/MAL-2026-17662.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17662
Published
2026-10-08T03:44:05Z
Modified
2026-10-08T04:00:05Z
Summary
Malicious code in hardhat-promised (npm)
Details

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

Source: amazon-inspector (306eed59a2a4d15563101a3bfde19c1d6d5e0c9152cb0f3d0f421331e075ef4e)

The npm package hardhat-promised impersonates the pino logger: it ships pino's README (with pino shields.io badges linking to npmjs.com/package/pino), LICENSE, docs/, index.d.ts, and lib/ directory layout verbatim, while publishing under an unrelated name. index.js is a thin cover-story stub mirroring pino's public API and, at module top level, executes require('./lib/config'). lib/config.js is a 4,373,384-byte obfuscator.io-packed script (26,185-entry rotating string array, ~134k deobfuscation transforms, hex-escaped bootstrapper of the form (function(a,z){const kb={...}})) with no relation to the small constants module it replaces in real pino. Any consumer that requires this package executes the opaque 4.3MB blob on the installer's host at library load. The combination of unrelated-package impersonation, injected multi-megabyte obfuscated code where a trivial config module is advertised, and top-level execution on import is the trojanized-logger shape used to smuggle installer-harm code into dependency trees.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-021134",
            "import_time": "2026-10-08T03:50:30.145091373Z",
            "modified_time": "2026-10-08T03:44:05Z",
            "sha256": "306eed59a2a4d15563101a3bfde19c1d6d5e0c9152cb0f3d0f421331e075ef4e",
            "source": "amazon-inspector",
            "versions": [
                "2.21.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / hardhat-promised

Package

Name
hardhat-promised
View open source insights on deps.dev
Purl
pkg:npm/hardhat-promised

Affected ranges

Affected versions

2.*
2.21.0

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": "lib/config.js",
            "sha256": "7e4c6d76f1d845f752e37876a2d3f773996719f33c2d1c282e0a84b04444efeb",
            "tlsh": "bf1694889194e02b96df1753bf052afdd13aa876d0cca747c2d4be9d29ac80be475cd0"
        },
        {
            "path": "README.md",
            "sha256": "987942c23bee23c44a75d53b8a8fd119dbf7ba6de6a199c41f0e86e0fd97abfc",
            "tlsh": "b341946783e46bba4b6301b1a1c275aaff5f931c3faa60a5d89cc1291319497813220a"
        }
    ],
    "package_integrity": [
        {
            "filename": "hardhat-promised-2.21.0.tgz",
            "hashes": {
                "sha1": "0c83fd872e723e8c68c7b6c893637859fb1a7907",
                "sha512_sri": "sha512-KXS8g9ekQoJaw+aqbVVcFd/8spKYRQ219UBZ50mCdL5cMWascvC2I69R8T/DM19nYqF9cs+MTO672YS0RBnb7w=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/hardhat-promised/MAL-2026-17662.json"