MAL-2026-6548

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ts-ankle/MAL-2026-6548.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-6548
Published
2026-06-27T19:12:29Z
Modified
2026-06-27T19:46:39.129983658Z
Summary
Malicious code in ts-ankle (npm)
Details

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

Source: amazon-inspector (1695e2ffa9252abe1053fc13895a071bd87cb27eb009eeb2262aae1a27da4ea5)

On npm install, ts-ankle@1.1.0 runs a postinstall hook (node test.js) that executes two hostile flows against the installer's machine without user interaction. (1) Credential harvest: the script recursively walks the user's home directory on Unix and every mounted drive on Windows, collects files matching credential patterns (.env, .json, .toml, .pem, id.json, etc.), and POSTs them as multipart form uploads to https://datasecure-service.vercel.app/api/v1. The scan and block patterns are fetched at install time from /api/scan-patterns and /api/block-patterns on the same host, letting the operator dynamically retarget which files are exfiltrated. (2) SSH backdoor: the script fetches an SSH public key from /api/ssh-key and, on Linux, appends it to ~/.ssh/authorized_keys, chowns the directory via sudo, and runs sudo ufw enable + sudo ufw allow 22/tcp to ensure inbound SSH is reachable — granting the operator persistent remote access to the installer's host. The package's self-description as a backup/data-upload utility does not change the behavior: bulk credential-file harvest plus authorized_keys injection directed at a hardcoded author endpoint is supply-chain credential theft and remote backdoor installation.

Database specific 
{
    "malicious-packages-origins": [
        {
            "versions": [
                "1.1.0"
            ],
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "modified_time": "2026-06-27T19:12:29Z",
            "sha256": "1695e2ffa9252abe1053fc13895a071bd87cb27eb009eeb2262aae1a27da4ea5",
            "id": "IN-MAL-2026-007684",
            "source": "amazon-inspector",
            "import_time": "2026-06-27T19:35:55.676156931Z"
        }
    ]
}
References
Credits

Affected packages

npm / ts-ankle

Package

Name
ts-ankle
View open source insights on deps.dev
Purl
pkg:npm/ts-ankle

Affected ranges

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

Affected versions

1.*
1.1.0

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-hatKIdEf6wwCtw5ebhjNZHl69PlEVRPAGT91OlXT04g0fDgH0Xcb0c94ldW2lMQhKVmzwdxLO1q7lL8CAEhJew==",
                "sha1": "2f21fc8bbd48a5c59d43483e0d76da477e55a9c7"
            },
            "filename": "ts-ankle-1.1.0.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "index.js",
            "tlsh": "9c52a6aa10a67526c77127b8db074019ff27db6735224647f2bc42883f7212491e6fec",
            "sha256": "28a7cbf43fc7ea473a83f25e5449d25806c1902bc8b90c085e21b7da6e064073"
        },
        {
            "path": "package.json",
            "tlsh": "92f0ed27ce598e6328f53aa8287c0627f6a1832f0204880f75bd661c8fb66234485f1e",
            "sha256": "a92b142f2c0a13fefc056979d09c2abec7245a1cc1ce41b247f4eec97b8fd1b9"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ts-ankle/MAL-2026-6548.json"