MAL-2026-12781

Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-spa-plugin-suspense/MAL-2026-12781.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2026-12781

Aliases

GHSA-4996-xvm7-qf6q

Published

2026-08-05T13:40:50Z

Modified

2026-08-06T01:20:39.176176485Z

Summary

Malicious code in devplatform-spa-plugin-suspense (npm)

Details

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

Source: amazon-inspector (0cbc392b622da2cfe503443ce6a7ee67083df8a9f6e371f13e1a7625f3379bd7)

index.js requires setup.js at load, which downloads a platform-specific native binary from string-concat-obfuscated Cloudflare Workers hosts (oob-worker.cf103-070.workers.dev, cf101-adf, cf99-9b3, cf100-416) with DNS-TXT-record fallback to sdk.dl.wel1.ru, ext.dl.wel1.ru, pkg.dl.wel1.ru, and net.dl.wel1.ru. The fetched bytes are written to /var/tmp/.cache<hex> on Unix or a Windows temp path named dotnetdiag<hex>.exe, chmod'd 0o755, and detached-spawned via /bin/sh -c or cmd.exe /c start. Hostnames and dangerous API names (childprocess, chmodSync) are reconstructed from split literal arrays to evade static analysis, and there is no hash or signature verification of the downloaded payload. A second implementation of the same download-chmod-spawn pattern is present in lib/telemetry.js (~81KB), framed as an 'Analytics SDK', though it is not reached from the current main entry. Executing require() on this package causes attacker-controlled native code to run on the installer's machine.

Source: ghsa-malware (ccbbaf9a76f0fb8271605d97295f16ee50f771f45057412a890cd08a0b0623e6)

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": "2026-08-05T13:40:50Z",
            "id": "IN-MAL-2026-014994",
            "import_time": "2026-08-05T14:19:50.5058454Z",
            "sha256": "0cbc392b622da2cfe503443ce6a7ee67083df8a9f6e371f13e1a7625f3379bd7",
            "versions": [
                "35.6.2"
            ]
        },
        {
            "source": "ghsa-malware",
            "modified_time": "2026-08-05T14:47:01Z",
            "sha256": "ccbbaf9a76f0fb8271605d97295f16ee50f771f45057412a890cd08a0b0623e6",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "id": "GHSA-4996-xvm7-qf6q",
            "import_time": "2026-08-06T00:58:53.279137246Z"
        }
    ]
}

References

Credits

- Amazon Inspector - FINDER
- - inspector-research@amazon.com

Affected packages

npm / devplatform-spa-plugin-suspense

Package

Name: devplatform-spa-plugin-suspense; View open source insights on deps.dev
Purl: pkg:npm/devplatform-spa-plugin-suspense

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

35.*

35.6.2

Database specific

indicators

{
    "package_integrity": [
        {
            "filename": "devplatform-spa-plugin-suspense-35.6.2.tgz",
            "hashes": {
                "sha512_sri": "sha512-9UfNiD+uh9Q7rdTK0Lbx3VVAZ8s8UJfdgLpb8IS5DvicweWzE4aWb8oEuO3JBbboIddtA3VfDhCfAnwg4eWnkw==",
                "sha1": "5f1a5667f818be3fd1e894369e17eae4fec78c02"
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "6ca1965b05a670188bb0dbe8c7274816f55be76333818284fb5ca9985f7712883b2dfc",
            "sha256": "b4a2cf731ea747fe7a9c9ca5b833f3d243129ca9cdde632d60d032b1840ab9d0",
            "path": "setup.js"
        },
        {
            "tlsh": "3b835055566a142186b2b378df234107ff3685272642429dbafc82dc1fbd72092a5ffc",
            "sha256": "1de241fc4f3a4fd63ef4b98cb58dd07c13c571a0a1b73ab531f27e2c4c0e5085",
            "path": "lib/telemetry.js"
        }
    ]
}

source

"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-spa-plugin-suspense/MAL-2026-12781.json"

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"
    }
]