MAL-2026-4827

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/unleash-js/MAL-2026-4827.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4827
Aliases
  • GHSA-j5f8-3p7p-5c4c
Published
2026-05-26T18:11:25Z
Modified
2026-06-29T17:31:54Z
Summary
Malicious code in unleash-js (npm)
Details

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

Source: amazon-inspector (f3315b3ff9fe481a7a008cff1227c2449dd8762bdf0abbe1a6194954306c745d)

unleash-js@99.9.1 is an empty stub package (index.js exports {}, 35 bytes; no author, no description) whose sole effect is to pull a chained dependency ltidisafe from an arbitrary tarball URL on a third-party Google Cloud Storage bucket: https://ltidi.storage.googleapis.com/depenconf/ltidisafe-2.7.7.tgz. The host is not the package publisher's domain, the tarball is unpinned by hash, and the bucket is mutable — any installer running npm install unleash-js will fetch and execute whatever bytes currently sit at that URL, including any lifecycle scripts (preinstall/install/postinstall) inside the fetched tarball. The 99.9.1 version, empty metadata, and depenconf path segment are consistent with a dependency-confusion squat targeting an internal package name; the stub's only purpose is to act as a loader for the externally hosted payload.

Source: ghsa-malware (80b8d9c68487241999f1fab34c717c7a4405f1a5ecefb4a22e2e7fa8cdbdbba1)

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.

Source: ossf-package-analysis (d00549f2feef5f3af06b3625effca261dd2be514ae05dc1b21c60e3cb9d1b23b)

The OpenSSF Package Analysis project identified 'unleash-js' @ 99.9.1 (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": "2026-05-26T19:19:04.666062563Z",
            "modified_time": "2026-05-26T18:11:25Z",
            "sha256": "d00549f2feef5f3af06b3625effca261dd2be514ae05dc1b21c60e3cb9d1b23b",
            "source": "ossf-package-analysis",
            "versions": [
                "99.9.1"
            ]
        },
        {
            "id": "IN-MAL-2026-005058",
            "import_time": "2026-06-09T17:45:51.791404355Z",
            "modified_time": "2026-06-09T17:27:54Z",
            "sha256": "3767c7f2a916b57669b72ccc6532d0ded6fb74bf6dd3ffe79fe72dcf13d47e9b",
            "source": "amazon-inspector",
            "versions": [
                "99.9.1"
            ]
        },
        {
            "id": "IN-MAL-2026-005057",
            "import_time": "2026-06-09T17:45:51.759152165Z",
            "modified_time": "2026-06-09T17:27:54Z",
            "sha256": "f3315b3ff9fe481a7a008cff1227c2449dd8762bdf0abbe1a6194954306c745d",
            "source": "amazon-inspector",
            "versions": [
                "99.9.1"
            ]
        },
        {
            "id": "GHSA-j5f8-3p7p-5c4c",
            "import_time": "2026-06-29T17:14:01.283347224Z",
            "modified_time": "2026-06-29T16:53:37Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "80b8d9c68487241999f1fab34c717c7a4405f1a5ecefb4a22e2e7fa8cdbdbba1",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / unleash-js

Package

Name
unleash-js
View open source insights on deps.dev
Purl
pkg:npm/unleash-js

Affected ranges

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

Affected versions

99.*
99.9.1

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": [
        "ltidi.storage.googleapis.com",
        "7363616e.unleash-js.7emro0aojdvinxz1ywbmdt0x2o8hw8kx.oastify.com"
    ],
    "evidence_files": [
        {
            "path": "package.json",
            "sha256": "3b8111f7169aad25d98a70653fd8dccb4fb9b98801785b303ffb7c45fd3a2c6f",
            "tlsh": "16e0c2244a656a334ec511b2482a965bf3b19e5f1408bc1c5beb481c418db7368fa25c"
        }
    ],
    "package_integrity": [
        {
            "filename": "unleash-js-99.9.1.tgz",
            "hashes": {
                "sha1": "90743d386fd191e8d3f708982918d0b4e61aa43c",
                "sha512_sri": "sha512-6hH6eepPmmr+EqgjzMSy6WleYJTsZnjjtKOvXbU/zATe7guIZYkNV8WKiT6Ki+vbvpk8cfv7v3tDdpRbQSGVwQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/unleash-js/MAL-2026-4827.json"