MAL-2026-10153

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/notifier-log/MAL-2026-10153.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-10153
Published
2026-07-10T16:46:36Z
Modified
2026-07-10T17:17:00.873390387Z
Summary
Malicious code in notifier-log (npm)
Details

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

Source: amazon-inspector (f4c2346bef8105dc24079ee47eb8cd65dbb92f7dbbd6d17ac0c576646878298c)

The package presents itself as a pino-compatible logger (main entry exports a middleware aliased as pino, and lib/ contains pino-shaped files such as proto.js, redaction.js, multistream.js, transport.js), but its middleware spawns a detached child process running lib/caller.js which fetches a JSON blob from a hardcoded jsonkeeper.com paste, extracts a .cookie string, and passes it to new Function.constructor('require', s)(require). This executes attacker-controlled JavaScript with full require access under the installer's Node process. A base64-encoded backup endpoint and secret header key are stored in lib/const.js (decoding to a second jsonkeeper.com paste URL with an x-secret-key header), providing a redundant delivery channel. Because jsonkeeper.com is a mutable public paste site, the served payload can be changed at any moment. The logger API is a cover story for the dropper.

Database specific 
{
    "malicious-packages-origins": [
        {
            "sha256": "f4c2346bef8105dc24079ee47eb8cd65dbb92f7dbbd6d17ac0c576646878298c",
            "id": "IN-MAL-2026-009649",
            "import_time": "2026-07-10T17:10:14.265302954Z",
            "modified_time": "2026-07-10T16:46:36Z",
            "versions": [
                "1.3.5"
            ],
            "source": "amazon-inspector"
        }
    ]
}
References
Credits

Affected packages

npm / notifier-log

Package

Name
notifier-log
View open source insights on deps.dev
Purl
pkg:npm/notifier-log

Affected ranges

Affected versions

1.*
1.3.5

Database specific

indicators 
{
    "evidence_files": [
        {
            "sha256": "c94c68398967a72596733d62b40d3b2df9490056a3b25bfd96333d0a88d84624",
            "tlsh": "e701cb8f30fd101c019122e66b1fe4327010e85b390ae4d4374c87521ffa5aeaa53ede",
            "path": "lib/caller.js"
        },
        {
            "sha256": "32e82853dd646aac388b78f868241267a5e6483d847df3d4c843f8100590d469",
            "tlsh": "30213f8175f111480658d9c8b569e5363ce3c4377207b9b0e9ecb7862bcf20c0272ad7",
            "path": "index.js"
        },
        {
            "sha256": "9879ffb0bf61edef7e9b90ddc5fac9770c514c0cdecd9a07b15e8a677e6f8f74",
            "tlsh": "8ac08c8351e4a89704301773610ca995f2a1d26f0c840b0331f594844a396a93840fbb",
            "path": "lib/const.js"
        }
    ],
    "package_integrity": [
        {
            "filename": "notifier-log-1.3.5.tgz",
            "hashes": {
                "sha512_sri": "sha512-mrBngV/OZyxmTEc/GS90RuK3DAKy5K7tS3tfPR9mYVAsQwY2lhqBFFSuMVqDSRFJIoHCh/UiuDdjfb0AUV1fHQ==",
                "sha1": "96b24e2f513daab0bd05464190d041c7dffe4a38"
            }
        }
    ]
}
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/notifier-log/MAL-2026-10153.json"