MAL-2026-12712

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-http-client/MAL-2026-12712.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12712
Aliases
  • GHSA-r433-38gp-v38v
Published
2026-08-05T13:51:07Z
Modified
2026-08-06T01:20:27.792182266Z
Summary
Malicious code in devplatform-http-client (npm)
Details

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

Source: amazon-inspector (0232efebd49d07216da6eabd594c614076a3d1b414417d0d1be86d547a9c1adc)

On require() of devplatform-http-client, index.js loads vendor.js which unconditionally invokes init(). The routine selects a platform-specific payload path and fetches a native binary from Cloudflare Workers subdomains whose hostnames are reconstructed from split string fragments (e.g. ["oob-worker.cf102-baf.workers.","de","v"].join("")). If the HTTPS fetch fails, it falls back to a DNS TXT covert channel against *.dl.wel1.ru: it resolves c.<domain> for a chunk count, batches TXT lookups against 0..N.<domain>, concatenates the responses, and base64-decodes them into an executable buffer. The fetched bytes are written to /tmp or %TEMP% under a disguised filename (.cache<hex> on POSIX, dotnetdiag<hex>.exe on Windows), chmodded 0755, and spawned detached via cmd.exe start /b or /bin/sh -c. The package is presented as an HTTP client wrapper, a purpose that requires no native-binary download and no DNS TXT smuggling; the destinations are anonymous infrastructure (workers.dev subdomains and an unrelated.ru domain), string-split to defeat static string scanning, and the dropped filenames impersonate telemetry/diagnostic tooling. Installing or loading this package yields remote code execution on the installer machine.

Source: ghsa-malware (702822e9a922be125f008345b8c764d1848f224840ca61abdce2779b87830873)

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": "2026-08-05T13:51:07Z",
            "sha256": "0232efebd49d07216da6eabd594c614076a3d1b414417d0d1be86d547a9c1adc",
            "id": "IN-MAL-2026-015065",
            "versions": [
                "35.8.6"
            ],
            "import_time": "2026-08-05T14:19:58.237584709Z"
        },
        {
            "import_time": "2026-08-06T00:58:53.442578192Z",
            "modified_time": "2026-08-05T16:42:11Z",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "id": "GHSA-r433-38gp-v38v",
            "sha256": "702822e9a922be125f008345b8c764d1848f224840ca61abdce2779b87830873",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / devplatform-http-client

Package

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

Affected ranges

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

Affected versions

35.*
35.8.6

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": "sha512-73ovRTteSpZ4RC+6ATLldjSnIbIACckBwgkWNrgwwv71ArQhFWnhwv9hDdxs4ep4zRmvMi4pT+893aLk6le3hA==",
                "sha1": "c631deb0eaa15fa23fbe2c957e09c8628ad32c86"
            },
            "filename": "devplatform-http-client-35.8.6.tgz"
        }
    ],
    "evidence_files": [
        {
            "path": "_vendor.js",
            "sha256": "fd088450f7ab727a5a76ba77faeca3c8f65321d22f8dc700538d9267d61eab85",
            "tlsh": "dbb1b65a16a670184bb0abe4871b4416f65bf66333c0c2d4fb5ca5982f7712483b2efc"
        }
    ]
}
source
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-http-client/MAL-2026-12712.json"