MAL-2026-13467

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/wos-library-ui/MAL-2026-13467.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13467
Aliases
  • GHSA-j5rq-m53m-6xfx
  • GHSA-wh36-rj36-m3ff
Published
2026-08-06T16:21:22Z
Modified
2026-09-24T09:41:03Z
Summary
Malicious code in wos-library-ui (npm)
Details

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

Source: amazon-inspector (3124274f6fcb74cf0805b5545f6952214b90329427f55c616c868f760d592e63)

wos-library-ui@99.0.0 declares scripts.preinstall = 'node poc.js', which auto-runs on npm install. poc.js reads os.hostname(), os.userInfo().username, and process.cwd() and transmits them to the hardcoded Interactsh subdomain csytkgaubytabdgcvgljmgf8o1uj876pg.oast.fun via both a DNS A-record lookup (encoding host/user in the subdomain) and an http.request POST. The package name and inflated 99.0.0 version match the classic dependency-confusion shape targeting an internal 'wos-library-ui' package (self-described as an Inditex WOS PoC): any resolver that prefers the public npm registry will pull this artifact instead of the internal one and execute the beacon, disclosing internal host identifiers and build-path details to a third-party out-of-band collector. Self-labeling as a bug-bounty PoC does not alter the installer-side effect: unconsented install-time exfiltration of installer identity from a namesquatted package on the public registry.

Source: ghsa-malware (90cbc5eda3f6536c2913b38d5ac807012bee44ce13b89750ce5d3b716fedb071)

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-2026-016678",
            "import_time": "2026-08-06T18:09:04.855031203Z",
            "modified_time": "2026-08-06T16:21:22Z",
            "sha256": "3124274f6fcb74cf0805b5545f6952214b90329427f55c616c868f760d592e63",
            "source": "amazon-inspector",
            "versions": [
                "99.0.0"
            ]
        },
        {
            "id": "GHSA-wh36-rj36-m3ff",
            "import_time": "2026-09-22T00:58:49.468073825Z",
            "modified_time": "2026-09-21T23:37:28Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "90cbc5eda3f6536c2913b38d5ac807012bee44ce13b89750ce5d3b716fedb071",
            "source": "ghsa-malware"
        },
        {
            "id": "IN-MAL-2026-020350",
            "import_time": "2026-09-23T04:22:18.10868095Z",
            "modified_time": "2026-09-23T03:51:51Z",
            "sha256": "e79149a98892a08631d954f842503ee29bd16caf17eba6332951428e53615837",
            "source": "amazon-inspector",
            "versions": [
                "999.999.999"
            ]
        },
        {
            "id": "RLMA-2026-10814",
            "import_time": "2026-09-24T09:21:36.674771598Z",
            "modified_time": "2026-09-22T17:46:04Z",
            "sha256": "70fe61cc5aa44f67ea95e6943f39e66870075906b238a7ebbbda01d5df02bfd7",
            "source": "reversing-labs",
            "versions": [
                "99.0.0",
                "999.999.999"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / wos-library-ui

Package

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

Affected ranges

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

Affected versions

99.*
99.0.0
999.*
999.999.999

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"
    },
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "poc.js",
            "sha256": "78e3023649063953bc68371416498825ae5fe15c44b4618d49de232d203013d0",
            "tlsh": "7471b6eb41d8557239f2a5c620ba14575117d766761afbf1b48c030f0f86ae88232af7"
        },
        {
            "path": "package.json",
            "sha256": "3cfaf8e0204f8e1c6109e197c5f20c4c4c12841154ce6321795cbe0b16950429",
            "tlsh": "e701cba19650a0331af002e50c74a25a2822cd3fc50bac5e7b99011cd24f9fa427a25f"
        }
    ],
    "package_integrity": [
        {
            "filename": "wos-library-ui-99.0.0.tgz",
            "hashes": {
                "sha1": "fbeb5855cdf1d910d1daf745d056638d9fbf97ce",
                "sha512_sri": "sha512-rgdWNCnARPKVfD18zqRAqV6txQZr/sq0AAtwzx1dq6uR4B4uxsDv5a4sjjjVnKTdGpFL1jx1pxX4U8nMggbVRQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/wos-library-ui/MAL-2026-13467.json"