MAL-2026-11158

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/blots/MAL-2026-11158.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-11158
Published
2026-07-28T13:38:48Z
Modified
2026-08-05T14:35:14Z
Summary
Malicious code in blots (npm)
Details

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

Source: amazon-inspector (847ba592915f4561a16225808a93d2428bc12305dc3df0bbf5316bf5a5bd7518)

package.json defines preinstall and postinstall lifecycle scripts that unconditionally run curl against a hardcoded webhook.site endpoint, transmitting the installer's username (whoami), hostname, current working directory, and timestamp as query parameters. The endpoint is a third-party request-capture service controlled by the author (https://webhook.site/d80b4602-8a87-4693-8510-6ff77c62788e/blots). The package ships no other functionality tied to a documented purpose; the sole install-time effect is reconnaissance of the installer's host and identity to an attacker-controlled destination.

Source: ossf-package-analysis (57066a6751b0444f7693ed35561fa24c16c649be8ce94c692b63f0470784866a)

The OpenSSF Package Analysis project identified 'blots' @ 2.1.0 (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": "2026-07-29T03:10:39.13469058Z",
            "modified_time": "2026-07-28T13:38:48Z",
            "sha256": "57066a6751b0444f7693ed35561fa24c16c649be8ce94c692b63f0470784866a",
            "source": "ossf-package-analysis",
            "versions": [
                "2.1.0"
            ]
        },
        {
            "id": "IN-MAL-2026-011083",
            "import_time": "2026-08-04T21:33:16.252061904Z",
            "modified_time": "2026-08-04T21:30:06Z",
            "sha256": "6e60effdc9b01c947156ba12242c977a67552eda460c939e41b3545603f45ccf",
            "source": "amazon-inspector",
            "versions": [
                "2.1.0"
            ]
        },
        {
            "id": "IN-MAL-2026-014901",
            "import_time": "2026-08-05T14:19:41.339341246Z",
            "modified_time": "2026-08-05T13:09:00Z",
            "sha256": "847ba592915f4561a16225808a93d2428bc12305dc3df0bbf5316bf5a5bd7518",
            "source": "amazon-inspector",
            "versions": [
                "2.1.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / blots

Package

Name
blots
View open source insights on deps.dev
Purl
pkg:npm/blots

Affected ranges

Affected versions

2.*
2.1.0
2.1.1

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"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "package.json",
            "sha256": "d4a27a7d84d3514d831137b73a45a578075d1465bba3849caabfad206c730424",
            "tlsh": "6af081b2582878733ec641981e4d430ab944bb1b81017529a327f92419cd66f56bf327"
        }
    ],
    "package_integrity": [
        {
            "filename": "blots-2.1.0.tgz",
            "hashes": {
                "sha1": "3c59ec82db458a3508f8dd92d6de0c4b5b0e8c37",
                "sha512_sri": "sha512-EFUz+/2XP6NjcucR41AG6q8nIJDAZKCxCA5JCgPe1r9MH/pFamBwIHtLFMPkgecDvqMqdfq/6tTq3tmvELRIkA=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/blots/MAL-2026-11158.json"