MAL-2026-12374

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/eventea-router/MAL-2026-12374.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12374
Aliases
  • GHSA-h6vh-72w4-x86w
Published
2026-08-05T12:45:36Z
Modified
2026-08-06T01:21:02.869692056Z
Summary
Malicious code in eventea-router (npm)
Details

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

Source: amazon-inspector (a8a332e38d2400d3c15f34636f55191ca61c1d52ff49fbead378b9f9239de756)

index.js unconditionally requires vendor.js on load. vendor.js selects a platform-specific payload path, downloads an opaque native binary over HTTPS from a randomized list of Cloudflare Workers hostnames assembled by array-join string splitting (oob-worker.cf99-9b3.workers.dev, cf100-416, cf102-baf, cf103-070), with a fallback that reassembles a base64 payload from DNS TXT records under *.dl.well1.site. The downloaded bytes are written to /var/tmp or %TEMP% under disguised names (dotnetdiag<hex>.exe,.cache<hex>), chmod 0755'd, and spawned detached via /bin/sh -c or cmd. Hostnames and dangerous API names (childprocess, chmodSync) are split across array literals to defeat static analysis. A sibling module lib/telemetry.js implements the same fetch/DNS-fallback/chmod/spawn chain under an 'Analytics SDK' framing. setup() checks DISABLETELEMETRY / ANALYTICSOPTOUT / DONOT_TRACK and writes a TTL stamp file to avoid re-triggering, presenting the dropper as opt-out telemetry. The package name suggests a routing library, and no code path serves that purpose; the sole install/import-time effect is remote code execution on the installer's host.

Source: ghsa-malware (612163866035962f51d1080d88707424b95754324fe4eb36442852643956e029)

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",
            "import_time": "2026-08-05T13:08:43.30778406Z",
            "sha256": "a8a332e38d2400d3c15f34636f55191ca61c1d52ff49fbead378b9f9239de756",
            "id": "IN-MAL-2026-014749",
            "modified_time": "2026-08-05T12:45:36Z",
            "versions": [
                "20.2.3"
            ]
        },
        {
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "612163866035962f51d1080d88707424b95754324fe4eb36442852643956e029",
            "id": "GHSA-h6vh-72w4-x86w",
            "import_time": "2026-08-06T00:58:53.384973188Z",
            "modified_time": "2026-08-05T17:35:50Z",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / eventea-router

Package

Name
eventea-router
View open source insights on deps.dev
Purl
pkg:npm/eventea-router

Affected ranges

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

Affected versions

20.*
20.2.3

Database specific

indicators 
{
    "package_integrity": [
        {
            "filename": "eventea-router-20.2.3.tgz",
            "hashes": {
                "sha512_sri": "sha512-3xSpjkeluDHIGs1UhUpoTuWmdbsRxa68ebn0Aem2tvBHouCZlIrwhe6WbyM3BY7ptQbmYn8elv12CNsh5O7pyA==",
                "sha1": "7a584ef4673583833ab2267f38bc6fff78b9d084"
            }
        }
    ],
    "evidence_files": [
        {
            "path": "_vendor.js",
            "sha256": "bb430a3a0e612cc306064ad592a4784cce100305418547f562f10ce4156d1dbb",
            "tlsh": "09a1e95606aa70188b70d7e58b1b8416f56bf2633780c2d0f79ca5985f7212483b2efc"
        },
        {
            "path": "lib/telemetry.js",
            "sha256": "666dbf730bd7bd79d4169201a26612481efd5a8820225326db921790d5f4c2ec",
            "tlsh": "30835056566a142186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc"
        }
    ]
}
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"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/eventea-router/MAL-2026-12374.json"