MAL-2026-4421

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@pulse-web-platform-core/scripts-loader/MAL-2026-4421.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4421
Aliases
  • GHSA-f75f-hrx6-f8qh
Published
2026-05-21T17:01:50Z
Modified
2026-05-28T15:31:51Z
Summary
Malicious code in @pulse-web-platform-core/scripts-loader (npm)
Details

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

Source: amazon-inspector (7c69fc52eb76aa05711ea0c128624eb1fc8c70655a58f2f3e646da1dcd20f254)

On npm install, the package's preinstall.js performs an HTTP GET to http://${pkg}.${scope}.oob.moika.tech/poc.js and passes the response body directly to eval() with no integrity verification. The URL embeds the installing package's scope and name as DNS subdomains of oob.moika.tech, causing the installer's resolver and the remote server to receive the target's scope/package context as an out-of-band beacon before any code runs. The fetched payload then executes with the installer's privileges; an in-source comment indicates intent to collect whoami, hostname, ifconfig, and /etc/passwd output. The package metadata (keywords: ["bug bounty"], version 99.99.7, generic description k2 cloud utilities, scope @pulse-web-platform-core) is consistent with a dependency-confusion probe targeting an internal scope, but the install-time behavior is indistinguishable from a malicious supply-chain attack: every installer who pulls this package — whether deliberately or via name-confusion — executes attacker-controlled remote code over unauthenticated HTTP.

Source: ghsa-malware (cd9e3f800de83f801bc83bea04d4f2d5760a75001fb61d58d39feef6069b5810)

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-2026-003926",
            "import_time": "2026-05-26T05:51:36.067497093Z",
            "modified_time": "2026-05-21T17:01:50Z",
            "sha256": "7c69fc52eb76aa05711ea0c128624eb1fc8c70655a58f2f3e646da1dcd20f254",
            "source": "amazon-inspector",
            "versions": [
                "99.99.7"
            ]
        },
        {
            "id": "IN-MAL-2026-003927",
            "import_time": "2026-05-26T05:51:36.197271636Z",
            "modified_time": "2026-05-21T17:01:50Z",
            "sha256": "c198737da8eb0f424965be8360bb13ab81cfc062db919dbda6de136ced77eef7",
            "source": "amazon-inspector",
            "versions": [
                "99.99.7"
            ]
        },
        {
            "id": "GHSA-f75f-hrx6-f8qh",
            "import_time": "2026-05-28T15:25:19.329017379Z",
            "modified_time": "2026-05-28T13:39:44Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "cd9e3f800de83f801bc83bea04d4f2d5760a75001fb61d58d39feef6069b5810",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / @pulse-web-platform-core/scripts-loader

Package

Name
@pulse-web-platform-core/scripts-loader
View open source insights on deps.dev
Purl
pkg:npm/%40pulse-web-platform-core%2Fscripts-loader

Affected ranges

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

Affected versions

99.*
99.99.7

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 
{
    "domains": [
        "scripts-loader.pulse-web-platform-core.oob.moika.tech"
    ],
    "evidence_files": [
        {
            "path": "preinstall.js",
            "sha256": "a70b77c6d2828400141e6d188485d742427792d33c455c07cc32cd176fbe10dc",
            "tlsh": "8a1123a223a7062892d5bac459fc1441a5b3e27133f397c0f26c71f1279e03882bb9f5"
        },
        {
            "path": "package.json",
            "sha256": "6d4a84d9d503b59d4b80c30cad59910e399bdf2d0e6565908390cb60f98d66b3",
            "tlsh": "cfd0c2309a11e93329d45be2286a9506a1b04e0b4050ac0c67d3101e86ab6a684bf28a"
        }
    ],
    "package_integrity": [
        {
            "filename": "scripts-loader-99.99.7.tgz",
            "hashes": {
                "sha1": "3fb4c1cfc043bc226d891cfc89532957e638c8ef",
                "sha512_sri": "sha512-4MlBMx1CTlm377XtzPjADloNtTfE2NfFisF3YGNoIN8T/NobA+Qx9NHe3FfXA31lVL99X/oNLjMYGF3CCpzctg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@pulse-web-platform-core/scripts-loader/MAL-2026-4421.json"