MAL-2026-12719

Import Source

https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-jscodeshift-utils/MAL-2026-12719.json

JSON Data

https://api.osv.dev/v1/vulns/MAL-2026-12719

Aliases

GHSA-mfcc-hqhf-5g3f

Published

2026-08-05T13:49:00Z

Modified

2026-08-07T00:04:56.052718404Z

Summary

Malicious code in devplatform-jscodeshift-utils (npm)

Details

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

Source: amazon-inspector (3b08e96920cfa51b02e6ac450e73eb86615b96651f96cd8c94f0f272880689b9)

The package presents itself as a jscodeshift helper library exporting deepMerge/sleep/retry/chunk utilities, but index.js unconditionally invokes try { require('./_bootstrap'); } catch (_) {} on module load, hiding the malicious side effect behind a swallowed exception. bootstrap.js selects a platform-specific payload path, downloads bytes from one of three hardcoded Cloudflare Workers hostnames (oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev) — with a DNS-TXT fallback via sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru — writes the payload to /var/tmp/.cache<hex> on Unix or %TEMP%\dotnetdiag<hex>.exe on Windows, chmods it 0755, and spawns it detached via /bin/sh -c "<path> &" or cmd /c start. Destination hostnames are reconstructed at runtime by array-joining split literals to evade static inspection, and cache/payload filenames (analytics_state, dotnet_diag_<hex>.exe) are chosen to blend in with legitimate telemetry artifacts. An 80KB lib/telemetry.js is shipped but never referenced from index.js, consistent with cover-story padding. Requiring or installing this package causes attacker-controlled native code to execute on the developer's host.

Source: ghsa-malware (d662b5ea3e0d9ad955f194ab74515a958541234a800ca195728a1b464ce67ee7)

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": [
        {
            "import_time": "2026-08-05T14:19:56.694589881Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-015050",
            "versions": [
                "35.3.8"
            ],
            "modified_time": "2026-08-05T13:49:00Z",
            "sha256": "3b08e96920cfa51b02e6ac450e73eb86615b96651f96cd8c94f0f272880689b9"
        },
        {
            "import_time": "2026-08-06T23:53:00.6862824Z",
            "sha256": "d662b5ea3e0d9ad955f194ab74515a958541234a800ca195728a1b464ce67ee7",
            "id": "GHSA-mfcc-hqhf-5g3f",
            "modified_time": "2026-08-06T16:48:29Z",
            "source": "ghsa-malware",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ]
        }
    ]
}

References

Credits

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

Affected packages

npm / devplatform-jscodeshift-utils

Package

Name: devplatform-jscodeshift-utils; View open source insights on deps.dev
Purl: pkg:npm/devplatform-jscodeshift-utils

Affected ranges

Type: SEMVER
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

35.*

35.3.8

Database specific

source

"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/devplatform-jscodeshift-utils/MAL-2026-12719.json"

indicators

{
    "package_integrity": [
        {
            "hashes": {
                "sha512_sri": "sha512-omYQfhAe+QkZQUu/VeKxQJOiSCWvvhW1t4nf3SQazxGXfquwjwV2l1e7CHD4MQhML1szCJH7SLdkNTeWSbk5zg==",
                "sha1": "a83b83081627bfead60c124b691976802a57066c"
            },
            "filename": "devplatform-jscodeshift-utils-35.3.8.tgz"
        }
    ],
    "evidence_files": [
        {
            "tlsh": "e4a1959a166a70098b70d7e0c2175416f65af2637380d294fb5ca5885ff3124c3b2efc",
            "path": "_bootstrap.js",
            "sha256": "c4b44b90f15a39c35c0c37884898cd45854880dcd74434765aab9dd77890566b"
        },
        {
            "sha256": "34adde36636aae20a9f0acdd0c4172733efbc566d72882d51e708d72ac7cdcc8",
            "path": "index.js",
            "tlsh": "e011bdcb2560706602727736e793c112f86a8422a972425cfa8c77d22f71d225ab5eda"
        }
    ]
}

cwes

[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    },
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    }
]