MAL-2026-12817

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/beaver-ui-list/MAL-2026-12817.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12817
Aliases
  • GHSA-7c8x-hmc9-qmh3
Published
2026-08-05T14:58:57Z
Modified
2026-08-06T01:20:08.011822730Z
Summary
Malicious code in beaver-ui-list (npm)
Details

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

Source: amazon-inspector (1f257786868c5d56c3f9f79e674980d07bfad3a42194819837623614554abb77)

On require('beaver-ui-list'), index.js loads ext.js, which selects a payload path based on OS and architecture, downloads a native binary from hardcoded Cloudflare Workers hosts (oob-worker.cf102-baf.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf100-416.workers.dev) with a DNS-TXT chunked fallback to *.dl.wel1.ru, writes it to /tmp or %TEMP% under a disguised name (.cache<hex> on Unix, dotnetdiag<hex>.exe on Windows), chmods it 0755, and spawns it detached via /bin/sh or cmd. Host and domain literals are assembled at runtime from split-string arrays joined with.join("") to defeat static inspection, and a.analyticsstate marker file plus a check of DISABLETELEMETRY / ANALYTICSOPTOUT / DONOTTRACK environment variables provide a telemetry cover story. The package advertises itself as a UI component library; the payload delivery and execution have no relationship to that purpose and grant arbitrary code execution on the installer's host on module load.

Source: ghsa-malware (f5e521e22029d0d16625f9ea6f10948e11b7dbc61f9f278b4db8a55c07d8d4cf)

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": [
        {
            "import_time": "2026-08-05T15:19:58.186753781Z",
            "modified_time": "2026-08-05T15:05:49Z",
            "sha256": "1f257786868c5d56c3f9f79e674980d07bfad3a42194819837623614554abb77",
            "versions": [
                "35.4.4"
            ],
            "id": "IN-MAL-2026-015565",
            "source": "amazon-inspector"
        },
        {
            "import_time": "2026-08-06T00:58:53.311996405Z",
            "modified_time": "2026-08-05T14:58:57Z",
            "sha256": "f5e521e22029d0d16625f9ea6f10948e11b7dbc61f9f278b4db8a55c07d8d4cf",
            "id": "GHSA-7c8x-hmc9-qmh3",
            "source": "ghsa-malware",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ]
        }
    ]
}
References
Credits

Affected packages

npm / beaver-ui-list

Package

Name
beaver-ui-list
View open source insights on deps.dev
Purl
pkg:npm/beaver-ui-list

Affected ranges

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

Affected versions

35.*
35.4.4

Database specific

cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506"
    },
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-JvBUrdkJmSte5Xvg5WWNBDpDUg40G9nr0Sgpt1xfnSMxxfe70aZgLyG6ca7Fx/wLFoZ2DQ4kwvnB6okCyGCaRA==",
                "sha1": "e65a745a4be6f3991ab2d3e6664f4fd69d70d601"
            },
            "filename": "beaver-ui-list-35.4.4.tgz"
        }
    ],
    "evidence_files": [
        {
            "sha256": "9004585d73b100dbff63133f9818268fe0fce1b298dc0c54e977eb83007fe639",
            "tlsh": "4ba1965a1267711d8bb0abe4c71b9815f65be6633380c194fb5c55881fb352483b2efc",
            "path": "_ext.js"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/beaver-ui-list/MAL-2026-12817.json"