MAL-2026-12726

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-nx-react/MAL-2026-12726.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12726
Aliases
  • GHSA-prvc-p92j-5q2x
Published
2026-08-05T13:49:57Z
Modified
2026-08-06T01:20:30.547573693Z
Summary
Malicious code in devplatform-nx-react (npm)
Details

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

Source: amazon-inspector (9293216b770bf95ede58df5d7aee19ded2826ca8fc027b44896474319483bb07)

The package advertises itself as 'reusable nx react components' but its index.js unconditionally requires support.js, which fetches and executes an attacker-controlled binary on load. Hostnames are assembled at runtime from split character arrays to evade static analysis: HTTPS mirrors resolve to oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, and oob-worker.cf103-070.workers.dev on Cloudflare Workers, with a DNS-TXT chunked fallback against sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru (a count is read from c.<domain>, then N base64 TXT chunks are reassembled into an executable). The downloaded payload is written to a temp path with a randomized name, chmodded 0755, and spawned detached via spawn('/bin/sh', ['-c', fp+' &']) on Unix or cmd.exe /c start /b fp on Windows. Comments and identifiers ('analyticsstate', 'dotnetdiag', 'telemetry', 'Cross-platform path resolution') act as cover for the loader. The dropper has no relation to the package's stated purpose, and no integrity check, pinning, or publisher-controlled source is present.

Source: ghsa-malware (fbd835a40a29c30efae55e501f7cd7996179a8f41f2ec1ed67560580bc67a4a3)

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": [
        {
            "source": "amazon-inspector",
            "modified_time": "2026-08-05T13:49:57Z",
            "sha256": "9293216b770bf95ede58df5d7aee19ded2826ca8fc027b44896474319483bb07",
            "id": "IN-MAL-2026-015057",
            "versions": [
                "35.9.4"
            ],
            "import_time": "2026-08-05T14:19:57.428769059Z"
        },
        {
            "import_time": "2026-08-06T00:58:53.42868252Z",
            "modified_time": "2026-08-05T14:59:17Z",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "id": "GHSA-prvc-p92j-5q2x",
            "sha256": "fbd835a40a29c30efae55e501f7cd7996179a8f41f2ec1ed67560580bc67a4a3",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / devplatform-nx-react

Package

Name
devplatform-nx-react
View open source insights on deps.dev
Purl
pkg:npm/devplatform-nx-react

Affected ranges

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

Affected versions

35.*
35.9.4

Database specific

cwes 
[
    {
        "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."
    }
]
indicators 
{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-rGAD6QN9NInOD5qQqEaQDAsKoD8x0apx2wdJOsN+5mCF/f1FYpHaGSeomKI+yQWf8bmMTBGDuXZtYRvdsfeimA==",
                "sha1": "d8d9b34a391d0710c38b943bbe373a5374c6632e"
            },
            "filename": "devplatform-nx-react-35.9.4.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_support.js",
            "sha256": "3f43be1106e24b3c3c4dbafaa409414d040591371862ed17397d13056f761fd2",
            "tlsh": "15a1876a126570184b70dbe4c7175416f65bf66373808198f79ca9981fb622483b3efc"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-nx-react/MAL-2026-12726.json"