MAL-2026-5288

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/uisp-connector/MAL-2026-5288.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-5288
Published
2026-06-06T19:29:29Z
Modified
2026-06-11T00:16:29Z
Summary
Malicious code in uisp-connector (npm)
Details

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

Source: amazon-inspector (351b32a85d024168970d1a2e8b7c9c5e6ff6f1d31191390f248a988d9ea6b9a9)

package.json declares preinstall: node index.js || true, causing index.js to run automatically on npm install. index.js issues a DNS resolution and HTTPS GET to a unique subdomain under oast.online (an Interactsh out-of-band collection server). The callback reveals the installer's resolver IP, egress IP, and the fact that an internal build system fetched a package matching this name — the canonical dependency-confusion exfiltration signal. The README self-identifies the package as security research, and the version string contains security-research, but an installer cannot distinguish authorized research from real exploitation: the network beacon and information disclosure happen identically in both cases, and whoever controls the Interactsh subdomain receives the data.

Source: ossf-package-analysis (7387d5655b4341cd75024769045f64a7a2e6315e948c9b2e9789c9704f48ecc7)

The OpenSSF Package Analysis project identified 'uisp-connector' @ 99.0.0 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.
Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-06-06T19:34:10.225843713Z",
            "modified_time": "2026-06-06T19:29:29Z",
            "sha256": "7387d5655b4341cd75024769045f64a7a2e6315e948c9b2e9789c9704f48ecc7",
            "source": "ossf-package-analysis",
            "versions": [
                "99.0.0"
            ]
        },
        {
            "id": "IN-MAL-2026-005246",
            "import_time": "2026-06-09T20:46:00.200545244Z",
            "modified_time": "2026-06-09T20:44:15Z",
            "sha256": "9f2716a2af0ca7a9cfaa91ed2de5c46667d7630eae137db8c89a0e3911137115",
            "source": "amazon-inspector",
            "versions": [
                "0.0.1-security-research"
            ]
        },
        {
            "id": "IN-MAL-2026-005245",
            "import_time": "2026-06-09T20:46:00.000835265Z",
            "modified_time": "2026-06-09T20:44:15Z",
            "sha256": "351b32a85d024168970d1a2e8b7c9c5e6ff6f1d31191390f248a988d9ea6b9a9",
            "source": "amazon-inspector",
            "versions": [
                "0.0.1-security-research"
            ]
        },
        {
            "id": "IN-MAL-2026-005318",
            "import_time": "2026-06-11T00:00:58.122267885Z",
            "modified_time": "2026-06-10T23:35:23Z",
            "sha256": "ab14e5e62703677f925845467d6f0a844cfd4d0467f5e44cfa675540c45a5280",
            "source": "amazon-inspector",
            "versions": [
                "0.0.2-security-research"
            ]
        },
        {
            "id": "IN-MAL-2026-005319",
            "import_time": "2026-06-11T00:00:58.212524779Z",
            "modified_time": "2026-06-10T23:35:24Z",
            "sha256": "e029f127d48e58f34bbe52151b28b8bf4b358cb857e0813c9ab8bb32a5307ccc",
            "source": "amazon-inspector",
            "versions": [
                "0.0.2-security-research"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / uisp-connector

Package

Name
uisp-connector
View open source insights on deps.dev
Purl
pkg:npm/uisp-connector

Affected ranges

Affected versions

0.*
0.0.1-security-research
0.0.2-security-research
99.*
99.0.0

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": [
        "uisp-connector.d8hiivedv3ok8hrng5eghchyw4hwsioaz.oast.online",
        "d8hiivedv3ok8hrng5eghchyw4hwsioaz.oast.online"
    ],
    "evidence_files": [
        {
            "path": "index.js",
            "sha256": "2b69d2079ba54577c5504155eb3372887fa8dced9beccd156e2959cbf76b28fc",
            "tlsh": "a1d0c2e923a0f2740aa2a8d4d284f82f8003d00033ac6010942846b59c86779a9e09d1"
        }
    ],
    "package_integrity": [
        {
            "filename": "uisp-connector-0.0.1-security-research.tgz",
            "hashes": {
                "sha1": "e5bc18f246ebc6a86b36275e55cffa9f41712cef",
                "sha512_sri": "sha512-BlNI0UC7Y74aMCCX6X+jI2DAcPH3zbgtZNIMp5/1U04zHOFW4bv+qc02Nzif6zbZN1PwLzPkhWRGGMtxrKLTYA=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/uisp-connector/MAL-2026-5288.json"