MAL-2026-12356

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/content-publisher-sdks/MAL-2026-12356.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12356
Aliases
  • GHSA-cmjx-pgm3-j5gc
Published
2026-08-05T12:59:59Z
Modified
2026-09-09T03:00:04Z
Summary
Malicious code in content-publisher-sdks (npm)
Details

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

Source: amazon-inspector (c3faac0139a1c2fd25d8b955e9290380bec365a1d3034fb793dfa723cb930463)

package.json declares a preinstall hook that runs index.js on npm install. The script collects host reconnaissance (os.hostname(), os.userInfo(), homedir, DNS server list, current working directory, package.json contents) and reads /etc/passwd and /etc/hosts from the installer's filesystem, then POSTs the aggregated JSON over HTTPS to the hardcoded Burp Collaborator subdomain ie02j5ztgjeb6i7tp467ydwnjep8dy1n.oastify.com. The package name mimics a legitimate SDK category but its only behavior on install is this exfiltration beacon.

Source: ghsa-malware (39394cd04a494a4f6dceff2f54848e93a56bbbab2663fe9b48611ea39df58808)

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-2026-014841",
            "import_time": "2026-08-05T13:08:50.448393428Z",
            "modified_time": "2026-08-05T12:59:59Z",
            "sha256": "c3faac0139a1c2fd25d8b955e9290380bec365a1d3034fb793dfa723cb930463",
            "source": "amazon-inspector",
            "versions": [
                "1.0.1"
            ]
        },
        {
            "id": "GHSA-cmjx-pgm3-j5gc",
            "import_time": "2026-09-08T00:15:11.260831691Z",
            "modified_time": "2026-09-07T16:17:49Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "39394cd04a494a4f6dceff2f54848e93a56bbbab2663fe9b48611ea39df58808",
            "source": "ghsa-malware"
        },
        {
            "id": "IN-MAL-2026-019771",
            "import_time": "2026-09-09T02:44:24.01755322Z",
            "modified_time": "2026-09-09T02:43:24Z",
            "sha256": "1a7ee39106f48b5051e4c75d6443dfe115d8926af9a6c8a4e96b8e01a2bcbb20",
            "source": "amazon-inspector",
            "versions": [
                "1.0.2"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / content-publisher-sdks

Package

Name
content-publisher-sdks
View open source insights on deps.dev
Purl
pkg:npm/content-publisher-sdks

Affected ranges

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

Affected versions

1.*
1.0.1
1.0.2

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"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "index.js",
            "sha256": "1b96ba9b515d1e0eb69d3fb28701b2cb05239e190eb1c3f9f95c83c874c5e770",
            "tlsh": "09411395a2d917330de214c06a0c70803359f9767159989076cf42969f869f8b7216f3"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/content-publisher-sdks/MAL-2026-12356.json"