MAL-2026-5470

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/getd-typescript-eslint-rules/MAL-2026-5470.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-5470
Aliases
  • GHSA-v3g3-ppm6-4vqp
Published
2026-06-09T20:29:31Z
Modified
2026-09-01T11:30:51Z
Summary
Malicious code in getd-typescript-eslint-rules (npm)
Details

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

Source: amazon-inspector (caed4b0db34232c4ef920817b6087cee9ac0610ec4ec2e49edbb5f167342f42f)

On npm install, the postinstall.js script collects the installer's hostname, OS username, platform, current working directory, CI environment markers (CI, BUILD_BUILDID, AGENT_NAME), and package name/version, then sends them as query parameters in an HTTPS GET to a hardcoded webhook.site collector (https://webhook.site/18dc4281-d366-438a-9186-76fbcd56ade5). Errors are swallowed so the install does not fail visibly. The package's own metadata declares it a typosquat targeting @getd/typescript-eslint-rules and frames the beacon as 'defensive security research,' but the on-install behavior identifies any installer (including internal CI build agents) to a third-party endpoint regardless of stated intent.

Source: ghsa-malware (4bd0cf64b341cf3707367b4c054eddfc3676c9e180875927489e31ea28754c2a)

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-2026-005211",
            "import_time": "2026-06-09T20:45:54.671452791Z",
            "modified_time": "2026-06-09T20:29:31Z",
            "sha256": "caed4b0db34232c4ef920817b6087cee9ac0610ec4ec2e49edbb5f167342f42f",
            "source": "amazon-inspector",
            "versions": [
                "0.0.1"
            ]
        },
        {
            "id": "IN-MAL-2026-005212",
            "import_time": "2026-06-09T20:45:54.843400782Z",
            "modified_time": "2026-06-09T20:29:32Z",
            "sha256": "fbc75f9b06e69a7a9abfece2eb3d4f9c8b3c5f46e927b94c0037781e4aace47b",
            "source": "amazon-inspector",
            "versions": [
                "0.0.1"
            ]
        },
        {
            "id": "GHSA-v3g3-ppm6-4vqp",
            "import_time": "2026-07-13T05:25:23.728831171Z",
            "modified_time": "2026-07-13T04:54:11Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "4bd0cf64b341cf3707367b4c054eddfc3676c9e180875927489e31ea28754c2a",
            "source": "ghsa-malware"
        },
        {
            "id": "RLMA-2026-05545",
            "import_time": "2026-07-20T13:14:46.789855618Z",
            "modified_time": "2026-07-20T10:44:40Z",
            "sha256": "0893c4a74f0dfc2d88df1f7f83ee4fdd27aff7f2695afdf7c20e5503dc3452c7",
            "source": "reversing-labs",
            "versions": [
                "0.0.1"
            ]
        },
        {
            "id": "RLUA-2026-06257",
            "import_time": "2026-09-01T11:18:07.586712447Z",
            "modified_time": "2026-08-24T16:53:12Z",
            "sha256": "7db3e3c82f90b06bc70b117bc0ebd26baf49b6b52bd74bc44bcc2d34276de69d",
            "source": "reversing-labs"
        }
    ]
}
References
Credits

Affected packages

npm / getd-typescript-eslint-rules

Package

Name
getd-typescript-eslint-rules
View open source insights on deps.dev
Purl
pkg:npm/getd-typescript-eslint-rules

Affected ranges

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

Affected versions

0.*
0.0.1

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"
    }
]
indicators 
{
    "domains": [
        "webhook.site"
    ],
    "evidence_files": [
        {
            "path": "postinstall.js",
            "sha256": "4c012ed0db2ff88d1a8ce244a70fad334cb37a266e557b37538e7f9580f0f164",
            "tlsh": "062107b553f185201ee107c071bb140bba7bf1147697db90719d7341abf2539970356e"
        },
        {
            "path": "package.json",
            "sha256": "88332683aee21615bec23e1f88f4a3cf68cf3365428cd0260b101d073403fa29",
            "tlsh": "4d01f42a76264a3329c01a6c5d32a80a3d128e5751167d1e27e7070143dfd7fc5ff31a"
        }
    ],
    "package_integrity": [
        {
            "filename": "getd-typescript-eslint-rules-0.0.1.tgz",
            "hashes": {
                "sha1": "9c5cb575acff617499aef6961c34effd504d6eba",
                "sha512_sri": "sha512-UFT4/MjM3UCELq/U9EGJX+dBxsrlIUFiYBtuK8v+xFVpZS6l1txZY3fqsBqHw/pV1XcpkYc9h6ZozFyxBDXd0A=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/getd-typescript-eslint-rules/MAL-2026-5470.json"