MAL-2026-12737

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-react-micro-frontend/MAL-2026-12737.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12737
Aliases
  • GHSA-c37c-qgfc-7jr8
Published
2026-08-05T13:46:51Z
Modified
2026-08-06T01:20:32.678741237Z
Summary
Malicious code in devplatform-react-micro-frontend (npm)
Details

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

Source: amazon-inspector (38577b4e463996b1df19599f016c8ad16ebb36d8650effd666c93d844364c475)

devplatform-react-micro-frontend@35.2.1 is a lure package whose main entry auto-loads adapter.js on require. adapter.js selects a platform-specific asset, downloads an opaque binary over HTTPS from a rotating list of Cloudflare *.workers.dev hosts (oob-worker.cf101-adf.workers.dev and siblings cf100/cf102/cf103), and if HTTPS fails reassembles up to 2000 numbered TXT records under *.dl.wel1.ru into a base64 payload. The bytes are written to a temp path under a masquerading name (.cache<hex>, dotnetdiag<hex>.exe), chmod 755 on POSIX, and spawned detached via /bin/sh -c or cmd. Network destinations are assembled by joining substring arrays (e.g. ["oob-worker.cf101-a","df.workers.","dev"].join(""), ['sdk.dl.w','el1.','ru'].join("")) to evade static analysis. A duplicate dropper is shipped as lib/telemetry.js framed as an "Analytics SDK", using string-concat obfuscation of require("child"+"process") and fs["chmod"+"Sync"] to reach the same write-chmod-spawn sink. Installing or requiring the package results in remote-controlled binary execution on the host.

Source: ghsa-malware (c0cc6b5c52ea4bfa63cba8d1ccf60738a476118b01aff6c0b421c548a67f47f7)

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": [
        {
            "modified_time": "2026-08-05T13:46:51Z",
            "source": "amazon-inspector",
            "sha256": "38577b4e463996b1df19599f016c8ad16ebb36d8650effd666c93d844364c475",
            "import_time": "2026-08-05T14:19:55.053682874Z",
            "id": "IN-MAL-2026-015036",
            "versions": [
                "35.2.1"
            ]
        },
        {
            "source": "ghsa-malware",
            "modified_time": "2026-08-05T15:01:08Z",
            "id": "GHSA-c37c-qgfc-7jr8",
            "import_time": "2026-08-06T00:58:53.347322936Z",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "sha256": "c0cc6b5c52ea4bfa63cba8d1ccf60738a476118b01aff6c0b421c548a67f47f7"
        }
    ]
}
References
Credits

Affected packages

npm / devplatform-react-micro-frontend

Package

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

Affected ranges

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

Affected versions

35.*
35.2.1

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-react-micro-frontend/MAL-2026-12737.json"
indicators 
{
    "package_integrity": [
        {
            "filename": "devplatform-react-micro-frontend-35.2.1.tgz",
            "hashes": {
                "sha512_sri": "sha512-AX04AtyA8cQazS2JDorM9BXNLxUzhqItpaDbIm63CrAPbmx2fGYnJ6LXTjUdvfC0Q8jDcK83IN8wG61jvVmQZw==",
                "sha1": "fbaa20cb92b787b0e1e0604f5c7f11f196897964"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "89a1a656116670198bb0d7f4c717541af65ae663378081d8fb5ca8980f7216483b1efc",
            "sha256": "bcda187bd888ec91494b2a86c261cf70b177d7e8048e56ec2ee4b963570bfb00",
            "path": "_adapter.js"
        },
        {
            "tlsh": "db835055566a242186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc",
            "sha256": "91e8103c13209bb5f85b6d725e0bd7e56c73a36c188ac51bf8ddf29e21ce2864",
            "path": "lib/telemetry.js"
        }
    ]
}
cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    },
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]